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Finding the Fourth Proportional to 79,422.58, 109,605.08 and 43,125.58

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Solution

The fourth proportional to 79,422.58, 109,605.08 and 43,125.58 is: 59,514.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,422.58 : 109,605.08 = 43,125.58 : x
  2. Step 2: Convert to fraction form
    79,422.58/109,605.08 = 43,125.58/x
  3. Step 3: Cross multiply
    79,422.58x = 109,605.08 × 43,125.58
  4. Step 4: Simplify right side
    79,422.58x = 4,726,782,645.95
  5. Step 5: Solve for x
    x = 4,726,782,645.95/79,422.58
  6. Step 6: Final answer
    x = 59,514.34

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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.