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Finding the Fourth Proportional to 217,034.40, 325,648.80 and 98,644.80

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Solution

The fourth proportional to 217,034.40, 325,648.80 and 98,644.80 is: 148,011.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,034.40 : 325,648.80 = 98,644.80 : x
  2. Step 2: Convert to fraction form
    217,034.40/325,648.80 = 98,644.80/x
  3. Step 3: Cross multiply
    217,034.40x = 325,648.80 × 98,644.80
  4. Step 4: Simplify right side
    217,034.40x = 32,123,560,746.24
  5. Step 5: Solve for x
    x = 32,123,560,746.24/217,034.40
  6. Step 6: Final answer
    x = 148,011.38

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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.