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Finding the Fourth Proportional to 108,506.70, 149,741.22 and 60,760.86

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Solution

The fourth proportional to 108,506.70, 149,741.22 and 60,760.86 is: 83,851.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,506.70 : 149,741.22 = 60,760.86 : x
  2. Step 2: Convert to fraction form
    108,506.70/149,741.22 = 60,760.86/x
  3. Step 3: Cross multiply
    108,506.70x = 149,741.22 × 60,760.86
  4. Step 4: Simplify right side
    108,506.70x = 9,098,405,304.65
  5. Step 5: Solve for x
    x = 9,098,405,304.65/108,506.70
  6. Step 6: Final answer
    x = 83,851.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.