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Finding the Fourth Proportional to 157,785.68, 236,747.88 and 82,888.42

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Solution

The fourth proportional to 157,785.68, 236,747.88 and 82,888.42 is: 124,369.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,785.68 : 236,747.88 = 82,888.42 : x
  2. Step 2: Convert to fraction form
    157,785.68/236,747.88 = 82,888.42/x
  3. Step 3: Cross multiply
    157,785.68x = 236,747.88 × 82,888.42
  4. Step 4: Simplify right side
    157,785.68x = 19,623,657,711.55
  5. Step 5: Solve for x
    x = 19,623,657,711.55/157,785.68
  6. Step 6: Final answer
    x = 124,369.07

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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.