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Finding the Fourth Proportional to 173,899.31, 239,443.70 and 135,812.70

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Solution

The fourth proportional to 173,899.31, 239,443.70 and 135,812.70 is: 187,001.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,899.31 : 239,443.70 = 135,812.70 : x
  2. Step 2: Convert to fraction form
    173,899.31/239,443.70 = 135,812.70/x
  3. Step 3: Cross multiply
    173,899.31x = 239,443.70 × 135,812.70
  4. Step 4: Simplify right side
    173,899.31x = 32,519,494,715.93
  5. Step 5: Solve for x
    x = 32,519,494,715.93/173,899.31
  6. Step 6: Final answer
    x = 187,001.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.