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Finding the Fourth Proportional to 157,618.70, 236,425.75 and 73,331.72

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Solution

The fourth proportional to 157,618.70, 236,425.75 and 73,331.72 is: 109,996.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,618.70 : 236,425.75 = 73,331.72 : x
  2. Step 2: Convert to fraction form
    157,618.70/236,425.75 = 73,331.72/x
  3. Step 3: Cross multiply
    157,618.70x = 236,425.75 × 73,331.72
  4. Step 4: Simplify right side
    157,618.70x = 17,337,506,899.79
  5. Step 5: Solve for x
    x = 17,337,506,899.79/157,618.70
  6. Step 6: Final answer
    x = 109,996.51

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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.