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Finding the Fourth Proportional to 124,125.53, 186,042.49 and 57,424.76

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Solution

The fourth proportional to 124,125.53, 186,042.49 and 57,424.76 is: 86,069.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,125.53 : 186,042.49 = 57,424.76 : x
  2. Step 2: Convert to fraction form
    124,125.53/186,042.49 = 57,424.76/x
  3. Step 3: Cross multiply
    124,125.53x = 186,042.49 × 57,424.76
  4. Step 4: Simplify right side
    124,125.53x = 10,683,444,961.94
  5. Step 5: Solve for x
    x = 10,683,444,961.94/124,125.53
  6. Step 6: Final answer
    x = 86,069.69

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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.