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Finding the Fourth Proportional to 360,921.68, 498,182.96 and 208,062.11

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Solution

The fourth proportional to 360,921.68, 498,182.96 and 208,062.11 is: 287,189.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,921.68 : 498,182.96 = 208,062.11 : x
  2. Step 2: Convert to fraction form
    360,921.68/498,182.96 = 208,062.11/x
  3. Step 3: Cross multiply
    360,921.68x = 498,182.96 × 208,062.11
  4. Step 4: Simplify right side
    360,921.68x = 103,652,994,292.42
  5. Step 5: Solve for x
    x = 103,652,994,292.42/360,921.68
  6. Step 6: Final answer
    x = 287,189.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.