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Finding the Fourth Proportional to 181,611.92, 272,417.42 and 86,553.96

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Solution

The fourth proportional to 181,611.92, 272,417.42 and 86,553.96 is: 129,830.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,611.92 : 272,417.42 = 86,553.96 : x
  2. Step 2: Convert to fraction form
    181,611.92/272,417.42 = 86,553.96/x
  3. Step 3: Cross multiply
    181,611.92x = 272,417.42 × 86,553.96
  4. Step 4: Simplify right side
    181,611.92x = 23,578,806,041.21
  5. Step 5: Solve for x
    x = 23,578,806,041.21/181,611.92
  6. Step 6: Final answer
    x = 129,830.72

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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.