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Finding the Fourth Proportional to 84,991.92, 127,503.12 and 35,044.24

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Solution

The fourth proportional to 84,991.92, 127,503.12 and 35,044.24 is: 52,572.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,991.92 : 127,503.12 = 35,044.24 : x
  2. Step 2: Convert to fraction form
    84,991.92/127,503.12 = 35,044.24/x
  3. Step 3: Cross multiply
    84,991.92x = 127,503.12 × 35,044.24
  4. Step 4: Simplify right side
    84,991.92x = 4,468,249,938.03
  5. Step 5: Solve for x
    x = 4,468,249,938.03/84,991.92
  6. Step 6: Final answer
    x = 52,572.64

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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.