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Finding the Fourth Proportional to 107,156.79, 160,739.10 and 40,601.88

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Solution

The fourth proportional to 107,156.79, 160,739.10 and 40,601.88 is: 60,904.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,156.79 : 160,739.10 = 40,601.88 : x
  2. Step 2: Convert to fraction form
    107,156.79/160,739.10 = 40,601.88/x
  3. Step 3: Cross multiply
    107,156.79x = 160,739.10 × 40,601.88
  4. Step 4: Simplify right side
    107,156.79x = 6,526,309,649.51
  5. Step 5: Solve for x
    x = 6,526,309,649.51/107,156.79
  6. Step 6: Final answer
    x = 60,904.30

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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.