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Finding the Fourth Proportional to 157,369.97, 236,124.72 and 82,472.30

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Solution

The fourth proportional to 157,369.97, 236,124.72 and 82,472.30 is: 123,745.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,369.97 : 236,124.72 = 82,472.30 : x
  2. Step 2: Convert to fraction form
    157,369.97/236,124.72 = 82,472.30/x
  3. Step 3: Cross multiply
    157,369.97x = 236,124.72 × 82,472.30
  4. Step 4: Simplify right side
    157,369.97x = 19,473,748,332.89
  5. Step 5: Solve for x
    x = 19,473,748,332.89/157,369.97
  6. Step 6: Final answer
    x = 123,745.01

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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.