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Finding the Fourth Proportional to 215,488.35, 323,124.39 and 125,560.13

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Solution

The fourth proportional to 215,488.35, 323,124.39 and 125,560.13 is: 188,277.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,488.35 : 323,124.39 = 125,560.13 : x
  2. Step 2: Convert to fraction form
    215,488.35/323,124.39 = 125,560.13/x
  3. Step 3: Cross multiply
    215,488.35x = 323,124.39 × 125,560.13
  4. Step 4: Simplify right side
    215,488.35x = 40,571,538,798.95
  5. Step 5: Solve for x
    x = 40,571,538,798.95/215,488.35
  6. Step 6: Final answer
    x = 188,277.18

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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.