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Finding the Fourth Proportional to 341,645.74, 512,781.12 and 173,282.32

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Solution

The fourth proportional to 341,645.74, 512,781.12 and 173,282.32 is: 260,081.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,645.74 : 512,781.12 = 173,282.32 : x
  2. Step 2: Convert to fraction form
    341,645.74/512,781.12 = 173,282.32/x
  3. Step 3: Cross multiply
    341,645.74x = 512,781.12 × 173,282.32
  4. Step 4: Simplify right side
    341,645.74x = 88,855,902,125.80
  5. Step 5: Solve for x
    x = 88,855,902,125.80/341,645.74
  6. Step 6: Final answer
    x = 260,081.98

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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.