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Finding the Fourth Proportional to 84,650.81, 116,552.13 and 71,877.11

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Solution

The fourth proportional to 84,650.81, 116,552.13 and 71,877.11 is: 98,964.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,650.81 : 116,552.13 = 71,877.11 : x
  2. Step 2: Convert to fraction form
    84,650.81/116,552.13 = 71,877.11/x
  3. Step 3: Cross multiply
    84,650.81x = 116,552.13 × 71,877.11
  4. Step 4: Simplify right side
    84,650.81x = 8,377,430,268.74
  5. Step 5: Solve for x
    x = 8,377,430,268.74/84,650.81
  6. Step 6: Final answer
    x = 98,964.56

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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.