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Finding the Fourth Proportional to 225,774.57, 338,618.72 and 113,423.60

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Solution

The fourth proportional to 225,774.57, 338,618.72 and 113,423.60 is: 170,113.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,774.57 : 338,618.72 = 113,423.60 : x
  2. Step 2: Convert to fraction form
    225,774.57/338,618.72 = 113,423.60/x
  3. Step 3: Cross multiply
    225,774.57x = 338,618.72 × 113,423.60
  4. Step 4: Simplify right side
    225,774.57x = 38,407,351,989.58
  5. Step 5: Solve for x
    x = 38,407,351,989.58/225,774.57
  6. Step 6: Final answer
    x = 170,113.72

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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.