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Finding the Fourth Proportional to 109,772.56, 151,486.86 and 59,471.56

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Solution

The fourth proportional to 109,772.56, 151,486.86 and 59,471.56 is: 82,071.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,772.56 : 151,486.86 = 59,471.56 : x
  2. Step 2: Convert to fraction form
    109,772.56/151,486.86 = 59,471.56/x
  3. Step 3: Cross multiply
    109,772.56x = 151,486.86 × 59,471.56
  4. Step 4: Simplify right side
    109,772.56x = 9,009,159,883.70
  5. Step 5: Solve for x
    x = 9,009,159,883.70/109,772.56
  6. Step 6: Final answer
    x = 82,071.15

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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.