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Finding the Fourth Proportional to 71,970.60, 107,946.45 and 22,055.70

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Solution

The fourth proportional to 71,970.60, 107,946.45 and 22,055.70 is: 33,080.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,970.60 : 107,946.45 = 22,055.70 : x
  2. Step 2: Convert to fraction form
    71,970.60/107,946.45 = 22,055.70/x
  3. Step 3: Cross multiply
    71,970.60x = 107,946.45 × 22,055.70
  4. Step 4: Simplify right side
    71,970.60x = 2,380,834,517.27
  5. Step 5: Solve for x
    x = 2,380,834,517.27/71,970.60
  6. Step 6: Final answer
    x = 33,080.65

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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.