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Finding the Fourth Proportional to 539,046.40, 808,569.60 and 165,068.80

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Solution

The fourth proportional to 539,046.40, 808,569.60 and 165,068.80 is: 247,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,046.40 : 808,569.60 = 165,068.80 : x
  2. Step 2: Convert to fraction form
    539,046.40/808,569.60 = 165,068.80/x
  3. Step 3: Cross multiply
    539,046.40x = 808,569.60 × 165,068.80
  4. Step 4: Simplify right side
    539,046.40x = 133,469,613,588.48
  5. Step 5: Solve for x
    x = 133,469,613,588.48/539,046.40
  6. Step 6: Final answer
    x = 247,603.20

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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.