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Finding the Fourth Proportional to 202,879.40, 304,319.10 and 177,947.60

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Solution

The fourth proportional to 202,879.40, 304,319.10 and 177,947.60 is: 266,921.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,879.40 : 304,319.10 = 177,947.60 : x
  2. Step 2: Convert to fraction form
    202,879.40/304,319.10 = 177,947.60/x
  3. Step 3: Cross multiply
    202,879.40x = 304,319.10 × 177,947.60
  4. Step 4: Simplify right side
    202,879.40x = 54,152,853,479.16
  5. Step 5: Solve for x
    x = 54,152,853,479.16/202,879.40
  6. Step 6: Final answer
    x = 266,921.40

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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.