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Finding the Fourth Proportional to 124,025.72, 186,034.40 and 53,905.04

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Solution

The fourth proportional to 124,025.72, 186,034.40 and 53,905.04 is: 80,855.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,025.72 : 186,034.40 = 53,905.04 : x
  2. Step 2: Convert to fraction form
    124,025.72/186,034.40 = 53,905.04/x
  3. Step 3: Cross multiply
    124,025.72x = 186,034.40 × 53,905.04
  4. Step 4: Simplify right side
    124,025.72x = 10,028,191,773.38
  5. Step 5: Solve for x
    x = 10,028,191,773.38/124,025.72
  6. Step 6: Final answer
    x = 80,855.74

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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.