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Finding the Fourth Proportional to 103,294.20, 154,955.70 and 44,129.40

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Solution

The fourth proportional to 103,294.20, 154,955.70 and 44,129.40 is: 66,200.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,294.20 : 154,955.70 = 44,129.40 : x
  2. Step 2: Convert to fraction form
    103,294.20/154,955.70 = 44,129.40/x
  3. Step 3: Cross multiply
    103,294.20x = 154,955.70 × 44,129.40
  4. Step 4: Simplify right side
    103,294.20x = 6,838,102,067.58
  5. Step 5: Solve for x
    x = 6,838,102,067.58/103,294.20
  6. Step 6: Final answer
    x = 66,200.25

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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.