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Finding the Fourth Proportional to 202,881.60, 304,322.40 and 132,379.20

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Solution

The fourth proportional to 202,881.60, 304,322.40 and 132,379.20 is: 198,568.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,881.60 : 304,322.40 = 132,379.20 : x
  2. Step 2: Convert to fraction form
    202,881.60/304,322.40 = 132,379.20/x
  3. Step 3: Cross multiply
    202,881.60x = 304,322.40 × 132,379.20
  4. Step 4: Simplify right side
    202,881.60x = 40,285,955,854.08
  5. Step 5: Solve for x
    x = 40,285,955,854.08/202,881.60
  6. Step 6: Final answer
    x = 198,568.80

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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.