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Finding the Fourth Proportional to 103,901.08, 155,851.62 and 83,255.80

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Solution

The fourth proportional to 103,901.08, 155,851.62 and 83,255.80 is: 124,883.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,901.08 : 155,851.62 = 83,255.80 : x
  2. Step 2: Convert to fraction form
    103,901.08/155,851.62 = 83,255.80/x
  3. Step 3: Cross multiply
    103,901.08x = 155,851.62 × 83,255.80
  4. Step 4: Simplify right side
    103,901.08x = 12,975,551,304.40
  5. Step 5: Solve for x
    x = 12,975,551,304.40/103,901.08
  6. Step 6: Final answer
    x = 124,883.70

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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.