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Finding the Fourth Proportional to 112,760.61, 168,932.11 and 56,535.09

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Solution

The fourth proportional to 112,760.61, 168,932.11 and 56,535.09 is: 84,697.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,760.61 : 168,932.11 = 56,535.09 : x
  2. Step 2: Convert to fraction form
    112,760.61/168,932.11 = 56,535.09/x
  3. Step 3: Cross multiply
    112,760.61x = 168,932.11 × 56,535.09
  4. Step 4: Simplify right side
    112,760.61x = 9,550,592,042.74
  5. Step 5: Solve for x
    x = 9,550,592,042.74/112,760.61
  6. Step 6: Final answer
    x = 84,697.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.