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Finding the Fourth Proportional to 108,038.66, 149,092.48 and 62,720.84

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Solution

The fourth proportional to 108,038.66, 149,092.48 and 62,720.84 is: 86,554.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,038.66 : 149,092.48 = 62,720.84 : x
  2. Step 2: Convert to fraction form
    108,038.66/149,092.48 = 62,720.84/x
  3. Step 3: Cross multiply
    108,038.66x = 149,092.48 × 62,720.84
  4. Step 4: Simplify right side
    108,038.66x = 9,351,206,034.42
  5. Step 5: Solve for x
    x = 9,351,206,034.42/108,038.66
  6. Step 6: Final answer
    x = 86,554.26

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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.