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Finding the Fourth Proportional to 107,141.28, 160,750.20 and 65,107.20

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Solution

The fourth proportional to 107,141.28, 160,750.20 and 65,107.20 is: 97,684.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,141.28 : 160,750.20 = 65,107.20 : x
  2. Step 2: Convert to fraction form
    107,141.28/160,750.20 = 65,107.20/x
  3. Step 3: Cross multiply
    107,141.28x = 160,750.20 × 65,107.20
  4. Step 4: Simplify right side
    107,141.28x = 10,465,995,421.44
  5. Step 5: Solve for x
    x = 10,465,995,421.44/107,141.28
  6. Step 6: Final answer
    x = 97,684.06

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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.