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Finding the Fourth Proportional to 279,447.80, 418,348.02 and 184,503.80

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Solution

The fourth proportional to 279,447.80, 418,348.02 and 184,503.80 is: 276,211.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,447.80 : 418,348.02 = 184,503.80 : x
  2. Step 2: Convert to fraction form
    279,447.80/418,348.02 = 184,503.80/x
  3. Step 3: Cross multiply
    279,447.80x = 418,348.02 × 184,503.80
  4. Step 4: Simplify right side
    279,447.80x = 77,186,799,412.48
  5. Step 5: Solve for x
    x = 77,186,799,412.48/279,447.80
  6. Step 6: Final answer
    x = 276,211.87

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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.