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Finding the Fourth Proportional to 103,687.66, 155,531.41 and 59,283.28

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Solution

The fourth proportional to 103,687.66, 155,531.41 and 59,283.28 is: 88,924.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,687.66 : 155,531.41 = 59,283.28 : x
  2. Step 2: Convert to fraction form
    103,687.66/155,531.41 = 59,283.28/x
  3. Step 3: Cross multiply
    103,687.66x = 155,531.41 × 59,283.28
  4. Step 4: Simplify right side
    103,687.66x = 9,220,411,831.41
  5. Step 5: Solve for x
    x = 9,220,411,831.41/103,687.66
  6. Step 6: Final answer
    x = 88,924.88

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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.