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Finding the Fourth Proportional to 121,158.92, 181,767.12 and 38,052.92

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Solution

The fourth proportional to 121,158.92, 181,767.12 and 38,052.92 is: 57,088.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,158.92 : 181,767.12 = 38,052.92 : x
  2. Step 2: Convert to fraction form
    121,158.92/181,767.12 = 38,052.92/x
  3. Step 3: Cross multiply
    121,158.92x = 181,767.12 × 38,052.92
  4. Step 4: Simplify right side
    121,158.92x = 6,916,769,675.99
  5. Step 5: Solve for x
    x = 6,916,769,675.99/121,158.92
  6. Step 6: Final answer
    x = 57,088.41

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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.