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Finding the Fourth Proportional to 99,593.80, 149,390.70 and 99,010.60

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Solution

The fourth proportional to 99,593.80, 149,390.70 and 99,010.60 is: 148,515.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,593.80 : 149,390.70 = 99,010.60 : x
  2. Step 2: Convert to fraction form
    99,593.80/149,390.70 = 99,010.60/x
  3. Step 3: Cross multiply
    99,593.80x = 149,390.70 × 99,010.60
  4. Step 4: Simplify right side
    99,593.80x = 14,791,262,841.42
  5. Step 5: Solve for x
    x = 14,791,262,841.42/99,593.80
  6. Step 6: Final answer
    x = 148,515.90

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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.