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Finding the Fourth Proportional to 107,065.98, 147,755.70 and 59,319.18

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Solution

The fourth proportional to 107,065.98, 147,755.70 and 59,319.18 is: 81,863.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,065.98 : 147,755.70 = 59,319.18 : x
  2. Step 2: Convert to fraction form
    107,065.98/147,755.70 = 59,319.18/x
  3. Step 3: Cross multiply
    107,065.98x = 147,755.70 × 59,319.18
  4. Step 4: Simplify right side
    107,065.98x = 8,764,746,964.33
  5. Step 5: Solve for x
    x = 8,764,746,964.33/107,065.98
  6. Step 6: Final answer
    x = 81,863.04

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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.