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Finding the Fourth Proportional to 187,046.40, 280,569.60 and 124,060.80

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Solution

The fourth proportional to 187,046.40, 280,569.60 and 124,060.80 is: 186,091.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,046.40 : 280,569.60 = 124,060.80 : x
  2. Step 2: Convert to fraction form
    187,046.40/280,569.60 = 124,060.80/x
  3. Step 3: Cross multiply
    187,046.40x = 280,569.60 × 124,060.80
  4. Step 4: Simplify right side
    187,046.40x = 34,807,689,031.68
  5. Step 5: Solve for x
    x = 34,807,689,031.68/187,046.40
  6. Step 6: Final answer
    x = 186,091.20

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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.