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Finding the Fourth Proportional to 131,901.67, 182,024.47 and 71,472.30

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Solution

The fourth proportional to 131,901.67, 182,024.47 and 71,472.30 is: 98,631.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,901.67 : 182,024.47 = 71,472.30 : x
  2. Step 2: Convert to fraction form
    131,901.67/182,024.47 = 71,472.30/x
  3. Step 3: Cross multiply
    131,901.67x = 182,024.47 × 71,472.30
  4. Step 4: Simplify right side
    131,901.67x = 13,009,707,043.84
  5. Step 5: Solve for x
    x = 13,009,707,043.84/131,901.67
  6. Step 6: Final answer
    x = 98,631.86

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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.