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Finding the Fourth Proportional to 161,040.80, 241,561.20 and 101,165.60

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Solution

The fourth proportional to 161,040.80, 241,561.20 and 101,165.60 is: 151,748.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,040.80 : 241,561.20 = 101,165.60 : x
  2. Step 2: Convert to fraction form
    161,040.80/241,561.20 = 101,165.60/x
  3. Step 3: Cross multiply
    161,040.80x = 241,561.20 × 101,165.60
  4. Step 4: Simplify right side
    161,040.80x = 24,437,683,734.72
  5. Step 5: Solve for x
    x = 24,437,683,734.72/161,040.80
  6. Step 6: Final answer
    x = 151,748.40

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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.