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Finding the Fourth Proportional to 123,395.94, 185,167.92 and 53,275.20

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Solution

The fourth proportional to 123,395.94, 185,167.92 and 53,275.20 is: 79,944.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,395.94 : 185,167.92 = 53,275.20 : x
  2. Step 2: Convert to fraction form
    123,395.94/185,167.92 = 53,275.20/x
  3. Step 3: Cross multiply
    123,395.94x = 185,167.92 × 53,275.20
  4. Step 4: Simplify right side
    123,395.94x = 9,864,857,971.58
  5. Step 5: Solve for x
    x = 9,864,857,971.58/123,395.94
  6. Step 6: Final answer
    x = 79,944.75

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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.