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Finding the Fourth Proportional to 274,556.20, 411,834.30 and 97,061.80

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Solution

The fourth proportional to 274,556.20, 411,834.30 and 97,061.80 is: 145,592.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,556.20 : 411,834.30 = 97,061.80 : x
  2. Step 2: Convert to fraction form
    274,556.20/411,834.30 = 97,061.80/x
  3. Step 3: Cross multiply
    274,556.20x = 411,834.30 × 97,061.80
  4. Step 4: Simplify right side
    274,556.20x = 39,973,378,459.74
  5. Step 5: Solve for x
    x = 39,973,378,459.74/274,556.20
  6. Step 6: Final answer
    x = 145,592.70

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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.