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Finding the Fourth Proportional to 107,344.31, 160,999.45 and 64,672.90

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Solution

The fourth proportional to 107,344.31, 160,999.45 and 64,672.90 is: 96,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,344.31 : 160,999.45 = 64,672.90 : x
  2. Step 2: Convert to fraction form
    107,344.31/160,999.45 = 64,672.90/x
  3. Step 3: Cross multiply
    107,344.31x = 160,999.45 × 64,672.90
  4. Step 4: Simplify right side
    107,344.31x = 10,412,300,765.72
  5. Step 5: Solve for x
    x = 10,412,300,765.72/107,344.31
  6. Step 6: Final answer
    x = 96,999.10

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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.