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Finding the Fourth Proportional to 124,683.52, 187,041.84 and 45,798.88

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Solution

The fourth proportional to 124,683.52, 187,041.84 and 45,798.88 is: 68,704.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,683.52 : 187,041.84 = 45,798.88 : x
  2. Step 2: Convert to fraction form
    124,683.52/187,041.84 = 45,798.88/x
  3. Step 3: Cross multiply
    124,683.52x = 187,041.84 × 45,798.88
  4. Step 4: Simplify right side
    124,683.52x = 8,566,306,785.14
  5. Step 5: Solve for x
    x = 8,566,306,785.14/124,683.52
  6. Step 6: Final answer
    x = 68,704.40

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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.