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Finding the Fourth Proportional to 229,257.70, 343,886.55 and 71,484.90

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Solution

The fourth proportional to 229,257.70, 343,886.55 and 71,484.90 is: 107,227.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,257.70 : 343,886.55 = 71,484.90 : x
  2. Step 2: Convert to fraction form
    229,257.70/343,886.55 = 71,484.90/x
  3. Step 3: Cross multiply
    229,257.70x = 343,886.55 × 71,484.90
  4. Step 4: Simplify right side
    229,257.70x = 24,582,695,638.10
  5. Step 5: Solve for x
    x = 24,582,695,638.10/229,257.70
  6. Step 6: Final answer
    x = 107,227.35

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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.