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Finding the Fourth Proportional to 124,873.60, 187,310.40 and 123,998.80

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Solution

The fourth proportional to 124,873.60, 187,310.40 and 123,998.80 is: 185,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,873.60 : 187,310.40 = 123,998.80 : x
  2. Step 2: Convert to fraction form
    124,873.60/187,310.40 = 123,998.80/x
  3. Step 3: Cross multiply
    124,873.60x = 187,310.40 × 123,998.80
  4. Step 4: Simplify right side
    124,873.60x = 23,226,264,827.52
  5. Step 5: Solve for x
    x = 23,226,264,827.52/124,873.60
  6. Step 6: Final answer
    x = 185,998.20

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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.