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Finding the Fourth Proportional to 84,891.11, 117,100.95 and 53,004.65

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Solution

The fourth proportional to 84,891.11, 117,100.95 and 53,004.65 is: 73,115.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,891.11 : 117,100.95 = 53,004.65 : x
  2. Step 2: Convert to fraction form
    84,891.11/117,100.95 = 53,004.65/x
  3. Step 3: Cross multiply
    84,891.11x = 117,100.95 × 53,004.65
  4. Step 4: Simplify right side
    84,891.11x = 6,206,894,743.84
  5. Step 5: Solve for x
    x = 6,206,894,743.84/84,891.11
  6. Step 6: Final answer
    x = 73,115.96

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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.