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Finding the Fourth Proportional to 109,695.74, 151,380.51 and 59,394.74

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Solution

The fourth proportional to 109,695.74, 151,380.51 and 59,394.74 is: 81,964.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,695.74 : 151,380.51 = 59,394.74 : x
  2. Step 2: Convert to fraction form
    109,695.74/151,380.51 = 59,394.74/x
  3. Step 3: Cross multiply
    109,695.74x = 151,380.51 × 59,394.74
  4. Step 4: Simplify right side
    109,695.74x = 8,991,206,032.52
  5. Step 5: Solve for x
    x = 8,991,206,032.52/109,695.74
  6. Step 6: Final answer
    x = 81,964.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.