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Finding the Fourth Proportional to 95,420.20, 143,007.90 and 53,300.20

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Solution

The fourth proportional to 95,420.20, 143,007.90 and 53,300.20 is: 79,881.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,420.20 : 143,007.90 = 53,300.20 : x
  2. Step 2: Convert to fraction form
    95,420.20/143,007.90 = 53,300.20/x
  3. Step 3: Cross multiply
    95,420.20x = 143,007.90 × 53,300.20
  4. Step 4: Simplify right side
    95,420.20x = 7,622,349,671.58
  5. Step 5: Solve for x
    x = 7,622,349,671.58/95,420.20
  6. Step 6: Final answer
    x = 79,881.93

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1.5x scale

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.