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Finding the Fourth Proportional to 250,421.66, 375,466.40 and 81,882.93

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Solution

The fourth proportional to 250,421.66, 375,466.40 and 81,882.93 is: 122,770.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,421.66 : 375,466.40 = 81,882.93 : x
  2. Step 2: Convert to fraction form
    250,421.66/375,466.40 = 81,882.93/x
  3. Step 3: Cross multiply
    250,421.66x = 375,466.40 × 81,882.93
  4. Step 4: Simplify right side
    250,421.66x = 30,744,288,948.55
  5. Step 5: Solve for x
    x = 30,744,288,948.55/250,421.66
  6. Step 6: Final answer
    x = 122,770.09

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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.