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Finding the Fourth Proportional to 109,387.32, 150,954.48 and 59,086.32

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Solution

The fourth proportional to 109,387.32, 150,954.48 and 59,086.32 is: 81,539.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,387.32 : 150,954.48 = 59,086.32 : x
  2. Step 2: Convert to fraction form
    109,387.32/150,954.48 = 59,086.32/x
  3. Step 3: Cross multiply
    109,387.32x = 150,954.48 × 59,086.32
  4. Step 4: Simplify right side
    109,387.32x = 8,919,344,710.71
  5. Step 5: Solve for x
    x = 8,919,344,710.71/109,387.32
  6. Step 6: Final answer
    x = 81,539.11

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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.