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Finding the Fourth Proportional to 88,696.60, 133,044.90 and 83,447.80

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Solution

The fourth proportional to 88,696.60, 133,044.90 and 83,447.80 is: 125,171.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,696.60 : 133,044.90 = 83,447.80 : x
  2. Step 2: Convert to fraction form
    88,696.60/133,044.90 = 83,447.80/x
  3. Step 3: Cross multiply
    88,696.60x = 133,044.90 × 83,447.80
  4. Step 4: Simplify right side
    88,696.60x = 11,102,304,206.22
  5. Step 5: Solve for x
    x = 11,102,304,206.22/88,696.60
  6. Step 6: Final answer
    x = 125,171.70

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1.5x scale

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.