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Finding the Fourth Proportional to 94,062.52, 129,808.74 and 53,782.84

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Solution

The fourth proportional to 94,062.52, 129,808.74 and 53,782.84 is: 74,221.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,062.52 : 129,808.74 = 53,782.84 : x
  2. Step 2: Convert to fraction form
    94,062.52/129,808.74 = 53,782.84/x
  3. Step 3: Cross multiply
    94,062.52x = 129,808.74 × 53,782.84
  4. Step 4: Simplify right side
    94,062.52x = 6,981,482,694.02
  5. Step 5: Solve for x
    x = 6,981,482,694.02/94,062.52
  6. Step 6: Final answer
    x = 74,221.73

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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.