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Finding the Fourth Proportional to 95,698,648.80, 143,547,973.20 and 90,659,800.80

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Solution

The fourth proportional to 95,698,648.80, 143,547,973.20 and 90,659,800.80 is: 135,989,701.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,698,648.80 : 143,547,973.20 = 90,659,800.80 : x
  2. Step 2: Convert to fraction form
    95,698,648.80/143,547,973.20 = 90,659,800.80/x
  3. Step 3: Cross multiply
    95,698,648.80x = 143,547,973.20 × 90,659,800.80
  4. Step 4: Simplify right side
    95,698,648.80x = 13,014,030,655,555,738
  5. Step 5: Solve for x
    x = 13,014,030,655,555,738/95,698,648.80
  6. Step 6: Final answer
    x = 135,989,701.20

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.