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Finding the Fourth Proportional to 125,122.83, 187,574.23 and 65,024.78

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Solution

The fourth proportional to 125,122.83, 187,574.23 and 65,024.78 is: 97,479.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,122.83 : 187,574.23 = 65,024.78 : x
  2. Step 2: Convert to fraction form
    125,122.83/187,574.23 = 65,024.78/x
  3. Step 3: Cross multiply
    125,122.83x = 187,574.23 × 65,024.78
  4. Step 4: Simplify right side
    125,122.83x = 12,196,972,182.83
  5. Step 5: Solve for x
    x = 12,196,972,182.83/125,122.83
  6. Step 6: Final answer
    x = 97,479.99

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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.