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Finding the Fourth Proportional to 108,461.91, 149,691.51 and 60,725.16

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Solution

The fourth proportional to 108,461.91, 149,691.51 and 60,725.16 is: 83,808.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,461.91 : 149,691.51 = 60,725.16 : x
  2. Step 2: Convert to fraction form
    108,461.91/149,691.51 = 60,725.16/x
  3. Step 3: Cross multiply
    108,461.91x = 149,691.51 × 60,725.16
  4. Step 4: Simplify right side
    108,461.91x = 9,090,040,895.39
  5. Step 5: Solve for x
    x = 9,090,040,895.39/108,461.91
  6. Step 6: Final answer
    x = 83,808.60

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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.