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Finding the Fourth Proportional to 99,193.60, 148,571.70 and 88,112.80

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Solution

The fourth proportional to 99,193.60, 148,571.70 and 88,112.80 is: 131,974.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,193.60 : 148,571.70 = 88,112.80 : x
  2. Step 2: Convert to fraction form
    99,193.60/148,571.70 = 88,112.80/x
  3. Step 3: Cross multiply
    99,193.60x = 148,571.70 × 88,112.80
  4. Step 4: Simplify right side
    99,193.60x = 13,091,068,487.76
  5. Step 5: Solve for x
    x = 13,091,068,487.76/99,193.60
  6. Step 6: Final answer
    x = 131,974.93

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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.