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Finding the Fourth Proportional to 124,005.30, 186,051.15 and 53,934.90

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Solution

The fourth proportional to 124,005.30, 186,051.15 and 53,934.90 is: 80,921.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,005.30 : 186,051.15 = 53,934.90 : x
  2. Step 2: Convert to fraction form
    124,005.30/186,051.15 = 53,934.90/x
  3. Step 3: Cross multiply
    124,005.30x = 186,051.15 × 53,934.90
  4. Step 4: Simplify right side
    124,005.30x = 10,034,650,170.14
  5. Step 5: Solve for x
    x = 10,034,650,170.14/124,005.30
  6. Step 6: Final answer
    x = 80,921.14

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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.