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Finding the Fourth Proportional to 218,364.65, 327,543.31 and 98,354.85

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Solution

The fourth proportional to 218,364.65, 327,543.31 and 98,354.85 is: 147,530.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,364.65 : 327,543.31 = 98,354.85 : x
  2. Step 2: Convert to fraction form
    218,364.65/327,543.31 = 98,354.85/x
  3. Step 3: Cross multiply
    218,364.65x = 327,543.31 × 98,354.85
  4. Step 4: Simplify right side
    218,364.65x = 32,215,473,123.55
  5. Step 5: Solve for x
    x = 32,215,473,123.55/218,364.65
  6. Step 6: Final answer
    x = 147,530.62

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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.