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Finding the Fourth Proportional to 539,023.20, 808,573.20 and 165,045.60

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Solution

The fourth proportional to 539,023.20, 808,573.20 and 165,045.60 is: 247,580.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,023.20 : 808,573.20 = 165,045.60 : x
  2. Step 2: Convert to fraction form
    539,023.20/808,573.20 = 165,045.60/x
  3. Step 3: Cross multiply
    539,023.20x = 808,573.20 × 165,045.60
  4. Step 4: Simplify right side
    539,023.20x = 133,451,448,937.92
  5. Step 5: Solve for x
    x = 133,451,448,937.92/539,023.20
  6. Step 6: Final answer
    x = 247,580.16

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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.