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Finding the Fourth Proportional to 86,174.56, 129,192.12 and 38,754.93

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Solution

The fourth proportional to 86,174.56, 129,192.12 and 38,754.93 is: 58,101.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,174.56 : 129,192.12 = 38,754.93 : x
  2. Step 2: Convert to fraction form
    86,174.56/129,192.12 = 38,754.93/x
  3. Step 3: Cross multiply
    86,174.56x = 129,192.12 × 38,754.93
  4. Step 4: Simplify right side
    86,174.56x = 5,006,831,567.15
  5. Step 5: Solve for x
    x = 5,006,831,567.15/86,174.56
  6. Step 6: Final answer
    x = 58,101.04

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1.5x scale

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.