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Finding the Fourth Proportional to 220,117.60, 330,176.40 and 188,624.80

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Solution

The fourth proportional to 220,117.60, 330,176.40 and 188,624.80 is: 282,937.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,117.60 : 330,176.40 = 188,624.80 : x
  2. Step 2: Convert to fraction form
    220,117.60/330,176.40 = 188,624.80/x
  3. Step 3: Cross multiply
    220,117.60x = 330,176.40 × 188,624.80
  4. Step 4: Simplify right side
    220,117.60x = 62,279,457,414.72
  5. Step 5: Solve for x
    x = 62,279,457,414.72/220,117.60
  6. Step 6: Final answer
    x = 282,937.20

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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.