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Finding the Fourth Proportional to 292,959.16, 403,992.50 and 220,535.44

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Solution

The fourth proportional to 292,959.16, 403,992.50 and 220,535.44 is: 304,119.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,959.16 : 403,992.50 = 220,535.44 : x
  2. Step 2: Convert to fraction form
    292,959.16/403,992.50 = 220,535.44/x
  3. Step 3: Cross multiply
    292,959.16x = 403,992.50 × 220,535.44
  4. Step 4: Simplify right side
    292,959.16x = 89,094,663,744.20
  5. Step 5: Solve for x
    x = 89,094,663,744.20/292,959.16
  6. Step 6: Final answer
    x = 304,119.74

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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.