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Finding the Fourth Proportional to 472,403.52, 708,399.90 and 135,369.90

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Solution

The fourth proportional to 472,403.52, 708,399.90 and 135,369.90 is: 202,996.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,403.52 : 708,399.90 = 135,369.90 : x
  2. Step 2: Convert to fraction form
    472,403.52/708,399.90 = 135,369.90/x
  3. Step 3: Cross multiply
    472,403.52x = 708,399.90 × 135,369.90
  4. Step 4: Simplify right side
    472,403.52x = 95,896,023,623.01
  5. Step 5: Solve for x
    x = 95,896,023,623.01/472,403.52
  6. Step 6: Final answer
    x = 202,996.00

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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.