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Finding the Fourth Proportional to 341,953.17, 512,615.88 and 131,432.55

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Solution

The fourth proportional to 341,953.17, 512,615.88 and 131,432.55 is: 197,028.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,953.17 : 512,615.88 = 131,432.55 : x
  2. Step 2: Convert to fraction form
    341,953.17/512,615.88 = 131,432.55/x
  3. Step 3: Cross multiply
    341,953.17x = 512,615.88 × 131,432.55
  4. Step 4: Simplify right side
    341,953.17x = 67,374,412,278.89
  5. Step 5: Solve for x
    x = 67,374,412,278.89/341,953.17
  6. Step 6: Final answer
    x = 197,028.18

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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.