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Finding the Fourth Proportional to 124,490.52, 186,640.07 and 64,454.63

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Solution

The fourth proportional to 124,490.52, 186,640.07 and 64,454.63 is: 96,632.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,490.52 : 186,640.07 = 64,454.63 : x
  2. Step 2: Convert to fraction form
    124,490.52/186,640.07 = 64,454.63/x
  3. Step 3: Cross multiply
    124,490.52x = 186,640.07 × 64,454.63
  4. Step 4: Simplify right side
    124,490.52x = 12,029,815,399.55
  5. Step 5: Solve for x
    x = 12,029,815,399.55/124,490.52
  6. Step 6: Final answer
    x = 96,632.38

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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.