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Finding the Fourth Proportional to 124,791.60, 186,798.60 and 89,799.60

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Solution

The fourth proportional to 124,791.60, 186,798.60 and 89,799.60 is: 134,419.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,791.60 : 186,798.60 = 89,799.60 : x
  2. Step 2: Convert to fraction form
    124,791.60/186,798.60 = 89,799.60/x
  3. Step 3: Cross multiply
    124,791.60x = 186,798.60 × 89,799.60
  4. Step 4: Simplify right side
    124,791.60x = 16,774,439,560.56
  5. Step 5: Solve for x
    x = 16,774,439,560.56/124,791.60
  6. Step 6: Final answer
    x = 134,419.62

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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.