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Finding the Fourth Proportional to 107,310.10, 160,901.15 and 65,786.90

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Solution

The fourth proportional to 107,310.10, 160,901.15 and 65,786.90 is: 98,641.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,310.10 : 160,901.15 = 65,786.90 : x
  2. Step 2: Convert to fraction form
    107,310.10/160,901.15 = 65,786.90/x
  3. Step 3: Cross multiply
    107,310.10x = 160,901.15 × 65,786.90
  4. Step 4: Simplify right side
    107,310.10x = 10,585,187,864.94
  5. Step 5: Solve for x
    x = 10,585,187,864.94/107,310.10
  6. Step 6: Final answer
    x = 98,641.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.