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Finding the Fourth Proportional to 113,789.66, 157,029.71 and 63,488.66

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Solution

The fourth proportional to 113,789.66, 157,029.71 and 63,488.66 is: 87,614.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,789.66 : 157,029.71 = 63,488.66 : x
  2. Step 2: Convert to fraction form
    113,789.66/157,029.71 = 63,488.66/x
  3. Step 3: Cross multiply
    113,789.66x = 157,029.71 × 63,488.66
  4. Step 4: Simplify right side
    113,789.66x = 9,969,604,765.50
  5. Step 5: Solve for x
    x = 9,969,604,765.50/113,789.66
  6. Step 6: Final answer
    x = 87,614.33

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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.