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Finding the Fourth Proportional to 243,761.97, 365,577.35 and 85,969.92

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Solution

The fourth proportional to 243,761.97, 365,577.35 and 85,969.92 is: 128,931.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,761.97 : 365,577.35 = 85,969.92 : x
  2. Step 2: Convert to fraction form
    243,761.97/365,577.35 = 85,969.92/x
  3. Step 3: Cross multiply
    243,761.97x = 365,577.35 × 85,969.92
  4. Step 4: Simplify right side
    243,761.97x = 31,428,656,474.38
  5. Step 5: Solve for x
    x = 31,428,656,474.38/243,761.97
  6. Step 6: Final answer
    x = 128,931.74

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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.