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Finding the Fourth Proportional to 107,040.30, 160,560.45 and 75,936.30

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Solution

The fourth proportional to 107,040.30, 160,560.45 and 75,936.30 is: 113,904.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,040.30 : 160,560.45 = 75,936.30 : x
  2. Step 2: Convert to fraction form
    107,040.30/160,560.45 = 75,936.30/x
  3. Step 3: Cross multiply
    107,040.30x = 160,560.45 × 75,936.30
  4. Step 4: Simplify right side
    107,040.30x = 12,192,366,499.34
  5. Step 5: Solve for x
    x = 12,192,366,499.34/107,040.30
  6. Step 6: Final answer
    x = 113,904.45

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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.