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Finding the Fourth Proportional to 74,310.63, 101,918.14 and 71,258.97

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Solution

The fourth proportional to 74,310.63, 101,918.14 and 71,258.97 is: 97,732.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,310.63 : 101,918.14 = 71,258.97 : x
  2. Step 2: Convert to fraction form
    74,310.63/101,918.14 = 71,258.97/x
  3. Step 3: Cross multiply
    74,310.63x = 101,918.14 × 71,258.97
  4. Step 4: Simplify right side
    74,310.63x = 7,262,581,680.72
  5. Step 5: Solve for x
    x = 7,262,581,680.72/74,310.63
  6. Step 6: Final answer
    x = 97,732.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.