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Finding the Fourth Proportional to 250,115.48, 375,209.30 and 81,594.14

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Solution

The fourth proportional to 250,115.48, 375,209.30 and 81,594.14 is: 122,402.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,115.48 : 375,209.30 = 81,594.14 : x
  2. Step 2: Convert to fraction form
    250,115.48/375,209.30 = 81,594.14/x
  3. Step 3: Cross multiply
    250,115.48x = 375,209.30 × 81,594.14
  4. Step 4: Simplify right side
    250,115.48x = 30,614,880,153.50
  5. Step 5: Solve for x
    x = 30,614,880,153.50/250,115.48
  6. Step 6: Final answer
    x = 122,402.98

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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.