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Finding the Fourth Proportional to 268,981.70, 403,472.55 and 174,503.30

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Solution

The fourth proportional to 268,981.70, 403,472.55 and 174,503.30 is: 261,754.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,981.70 : 403,472.55 = 174,503.30 : x
  2. Step 2: Convert to fraction form
    268,981.70/403,472.55 = 174,503.30/x
  3. Step 3: Cross multiply
    268,981.70x = 403,472.55 × 174,503.30
  4. Step 4: Simplify right side
    268,981.70x = 70,407,291,434.42
  5. Step 5: Solve for x
    x = 70,407,291,434.42/268,981.70
  6. Step 6: Final answer
    x = 261,754.95

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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.