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Finding the Fourth Proportional to 83,174.64, 114,780.84 and 47,364.66

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Solution

The fourth proportional to 83,174.64, 114,780.84 and 47,364.66 is: 65,363.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,174.64 : 114,780.84 = 47,364.66 : x
  2. Step 2: Convert to fraction form
    83,174.64/114,780.84 = 47,364.66/x
  3. Step 3: Cross multiply
    83,174.64x = 114,780.84 × 47,364.66
  4. Step 4: Simplify right side
    83,174.64x = 5,436,555,461.11
  5. Step 5: Solve for x
    x = 5,436,555,461.11/83,174.64
  6. Step 6: Final answer
    x = 65,363.14

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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.