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Finding the Fourth Proportional to 352,472.61, 528,535.38 and 127,799.46

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Solution

The fourth proportional to 352,472.61, 528,535.38 and 127,799.46 is: 191,636.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,472.61 : 528,535.38 = 127,799.46 : x
  2. Step 2: Convert to fraction form
    352,472.61/528,535.38 = 127,799.46/x
  3. Step 3: Cross multiply
    352,472.61x = 528,535.38 × 127,799.46
  4. Step 4: Simplify right side
    352,472.61x = 67,546,536,154.89
  5. Step 5: Solve for x
    x = 67,546,536,154.89/352,472.61
  6. Step 6: Final answer
    x = 191,636.27

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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.