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Finding the Fourth Proportional to 124,892.60, 187,338.90 and 40,660.70

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Solution

The fourth proportional to 124,892.60, 187,338.90 and 40,660.70 is: 60,991.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,892.60 : 187,338.90 = 40,660.70 : x
  2. Step 2: Convert to fraction form
    124,892.60/187,338.90 = 40,660.70/x
  3. Step 3: Cross multiply
    124,892.60x = 187,338.90 × 40,660.70
  4. Step 4: Simplify right side
    124,892.60x = 7,617,330,811.23
  5. Step 5: Solve for x
    x = 7,617,330,811.23/124,892.60
  6. Step 6: Final answer
    x = 60,991.05

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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.