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Finding the Fourth Proportional to 103,672.70, 155,393.85 and 44,498.30

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Solution

The fourth proportional to 103,672.70, 155,393.85 and 44,498.30 is: 66,698.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,672.70 : 155,393.85 = 44,498.30 : x
  2. Step 2: Convert to fraction form
    103,672.70/155,393.85 = 44,498.30/x
  3. Step 3: Cross multiply
    103,672.70x = 155,393.85 × 44,498.30
  4. Step 4: Simplify right side
    103,672.70x = 6,914,762,155.46
  5. Step 5: Solve for x
    x = 6,914,762,155.46/103,672.70
  6. Step 6: Final answer
    x = 66,698.00

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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.