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Finding the Fourth Proportional to 217,596.84, 326,159.10 and 84,437.88

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Solution

The fourth proportional to 217,596.84, 326,159.10 and 84,437.88 is: 126,565.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,596.84 : 326,159.10 = 84,437.88 : x
  2. Step 2: Convert to fraction form
    217,596.84/326,159.10 = 84,437.88/x
  3. Step 3: Cross multiply
    217,596.84x = 326,159.10 × 84,437.88
  4. Step 4: Simplify right side
    217,596.84x = 27,540,182,946.71
  5. Step 5: Solve for x
    x = 27,540,182,946.71/217,596.84
  6. Step 6: Final answer
    x = 126,565.18

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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.