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Finding the Fourth Proportional to 108,062.93, 161,963.08 and 76,482.18

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Solution

The fourth proportional to 108,062.93, 161,963.08 and 76,482.18 is: 114,630.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,062.93 : 161,963.08 = 76,482.18 : x
  2. Step 2: Convert to fraction form
    108,062.93/161,963.08 = 76,482.18/x
  3. Step 3: Cross multiply
    108,062.93x = 161,963.08 × 76,482.18
  4. Step 4: Simplify right side
    108,062.93x = 12,387,289,246.71
  5. Step 5: Solve for x
    x = 12,387,289,246.71/108,062.93
  6. Step 6: Final answer
    x = 114,630.33

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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.