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Finding the Fourth Proportional to 534,111.20, 801,114.96 and 140,127.20

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Solution

The fourth proportional to 534,111.20, 801,114.96 and 140,127.20 is: 210,177.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,111.20 : 801,114.96 = 140,127.20 : x
  2. Step 2: Convert to fraction form
    534,111.20/801,114.96 = 140,127.20/x
  3. Step 3: Cross multiply
    534,111.20x = 801,114.96 × 140,127.20
  4. Step 4: Simplify right side
    534,111.20x = 112,257,996,222.91
  5. Step 5: Solve for x
    x = 112,257,996,222.91/534,111.20
  6. Step 6: Final answer
    x = 210,177.20

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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.