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Finding the Fourth Proportional to 123,807.62, 185,817.47 and 122,875.71

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Solution

The fourth proportional to 123,807.62, 185,817.47 and 122,875.71 is: 184,418.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,807.62 : 185,817.47 = 122,875.71 : x
  2. Step 2: Convert to fraction form
    123,807.62/185,817.47 = 122,875.71/x
  3. Step 3: Cross multiply
    123,807.62x = 185,817.47 × 122,875.71
  4. Step 4: Simplify right side
    123,807.62x = 22,832,452,942.28
  5. Step 5: Solve for x
    x = 22,832,452,942.28/123,807.62
  6. Step 6: Final answer
    x = 184,418.81

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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.