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Finding the Fourth Proportional to 663,670.20, 995,508.90 and 165,034.20

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Solution

The fourth proportional to 663,670.20, 995,508.90 and 165,034.20 is: 247,552.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,670.20 : 995,508.90 = 165,034.20 : x
  2. Step 2: Convert to fraction form
    663,670.20/995,508.90 = 165,034.20/x
  3. Step 3: Cross multiply
    663,670.20x = 995,508.90 × 165,034.20
  4. Step 4: Simplify right side
    663,670.20x = 164,293,014,904.38
  5. Step 5: Solve for x
    x = 164,293,014,904.38/663,670.20
  6. Step 6: Final answer
    x = 247,552.20

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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.