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Finding the Fourth Proportional to 85,198.47, 127,854.59 and 29,794.47

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Solution

The fourth proportional to 85,198.47, 127,854.59 and 29,794.47 is: 44,711.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,198.47 : 127,854.59 = 29,794.47 : x
  2. Step 2: Convert to fraction form
    85,198.47/127,854.59 = 29,794.47/x
  3. Step 3: Cross multiply
    85,198.47x = 127,854.59 × 29,794.47
  4. Step 4: Simplify right side
    85,198.47x = 3,809,359,597.14
  5. Step 5: Solve for x
    x = 3,809,359,597.14/85,198.47
  6. Step 6: Final answer
    x = 44,711.60

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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.