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Finding the Fourth Proportional to 193,624.20, 290,436.30 and 144,472.20

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Solution

The fourth proportional to 193,624.20, 290,436.30 and 144,472.20 is: 216,708.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,624.20 : 290,436.30 = 144,472.20 : x
  2. Step 2: Convert to fraction form
    193,624.20/290,436.30 = 144,472.20/x
  3. Step 3: Cross multiply
    193,624.20x = 290,436.30 × 144,472.20
  4. Step 4: Simplify right side
    193,624.20x = 41,959,971,220.86
  5. Step 5: Solve for x
    x = 41,959,971,220.86/193,624.20
  6. Step 6: Final answer
    x = 216,708.30

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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.