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Finding the Fourth Proportional to 343,885.91, 515,593.55 and 175,079.57

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Solution

The fourth proportional to 343,885.91, 515,593.55 and 175,079.57 is: 262,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,885.91 : 515,593.55 = 175,079.57 : x
  2. Step 2: Convert to fraction form
    343,885.91/515,593.55 = 175,079.57/x
  3. Step 3: Cross multiply
    343,885.91x = 515,593.55 × 175,079.57
  4. Step 4: Simplify right side
    343,885.91x = 90,269,894,888.50
  5. Step 5: Solve for x
    x = 90,269,894,888.50/343,885.91
  6. Step 6: Final answer
    x = 262,499.55

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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.