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Finding the Fourth Proportional to 95,421.60, 143,078.40 and 36,259.20

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Solution

The fourth proportional to 95,421.60, 143,078.40 and 36,259.20 is: 54,368.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,421.60 : 143,078.40 = 36,259.20 : x
  2. Step 2: Convert to fraction form
    95,421.60/143,078.40 = 36,259.20/x
  3. Step 3: Cross multiply
    95,421.60x = 143,078.40 × 36,259.20
  4. Step 4: Simplify right side
    95,421.60x = 5,187,908,321.28
  5. Step 5: Solve for x
    x = 5,187,908,321.28/95,421.60
  6. Step 6: Final answer
    x = 54,368.28

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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.