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Finding the Fourth Proportional to 82,584.80, 124,427.65 and 74,696.10

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Solution

The fourth proportional to 82,584.80, 124,427.65 and 74,696.10 is: 112,542.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,584.80 : 124,427.65 = 74,696.10 : x
  2. Step 2: Convert to fraction form
    82,584.80/124,427.65 = 74,696.10/x
  3. Step 3: Cross multiply
    82,584.80x = 124,427.65 × 74,696.10
  4. Step 4: Simplify right side
    82,584.80x = 9,294,260,187.17
  5. Step 5: Solve for x
    x = 9,294,260,187.17/82,584.80
  6. Step 6: Final answer
    x = 112,542.02

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.