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Finding the Fourth Proportional to 187,137.60, 280,708.80 and 62,478.60

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Solution

The fourth proportional to 187,137.60, 280,708.80 and 62,478.60 is: 93,718.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,137.60 : 280,708.80 = 62,478.60 : x
  2. Step 2: Convert to fraction form
    187,137.60/280,708.80 = 62,478.60/x
  3. Step 3: Cross multiply
    187,137.60x = 280,708.80 × 62,478.60
  4. Step 4: Simplify right side
    187,137.60x = 17,538,292,831.68
  5. Step 5: Solve for x
    x = 17,538,292,831.68/187,137.60
  6. Step 6: Final answer
    x = 93,718.70

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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.