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Finding the Fourth Proportional to 109,641.56, 151,305.99 and 59,340.56

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Solution

The fourth proportional to 109,641.56, 151,305.99 and 59,340.56 is: 81,890.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,641.56 : 151,305.99 = 59,340.56 : x
  2. Step 2: Convert to fraction form
    109,641.56/151,305.99 = 59,340.56/x
  3. Step 3: Cross multiply
    109,641.56x = 151,305.99 × 59,340.56
  4. Step 4: Simplify right side
    109,641.56x = 8,978,582,177.95
  5. Step 5: Solve for x
    x = 8,978,582,177.95/109,641.56
  6. Step 6: Final answer
    x = 81,890.32

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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.