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Finding the Fourth Proportional to 108,290.66, 149,381.11 and 62,963.63

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Solution

The fourth proportional to 108,290.66, 149,381.11 and 62,963.63 is: 86,854.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,290.66 : 149,381.11 = 62,963.63 : x
  2. Step 2: Convert to fraction form
    108,290.66/149,381.11 = 62,963.63/x
  3. Step 3: Cross multiply
    108,290.66x = 149,381.11 × 62,963.63
  4. Step 4: Simplify right side
    108,290.66x = 9,405,576,034.71
  5. Step 5: Solve for x
    x = 9,405,576,034.71/108,290.66
  6. Step 6: Final answer
    x = 86,854.92

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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.