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Finding the Fourth Proportional to 234,729.80, 352,011.32 and 84,931.23

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Solution

The fourth proportional to 234,729.80, 352,011.32 and 84,931.23 is: 127,366.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,729.80 : 352,011.32 = 84,931.23 : x
  2. Step 2: Convert to fraction form
    234,729.80/352,011.32 = 84,931.23/x
  3. Step 3: Cross multiply
    234,729.80x = 352,011.32 × 84,931.23
  4. Step 4: Simplify right side
    234,729.80x = 29,896,755,595.40
  5. Step 5: Solve for x
    x = 29,896,755,595.40/234,729.80
  6. Step 6: Final answer
    x = 127,366.68

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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.