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Finding the Fourth Proportional to 353,000.56, 487,143.96 and 191,856

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Solution

The fourth proportional to 353,000.56, 487,143.96 and 191,856 is: 264,763.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,000.56 : 487,143.96 = 191,856 : x
  2. Step 2: Convert to fraction form
    353,000.56/487,143.96 = 191,856/x
  3. Step 3: Cross multiply
    353,000.56x = 487,143.96 × 191,856
  4. Step 4: Simplify right side
    353,000.56x = 93,461,491,589.76
  5. Step 5: Solve for x
    x = 93,461,491,589.76/353,000.56
  6. Step 6: Final answer
    x = 264,763.01

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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.