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Finding the Fourth Proportional to 318,522.84, 439,581.06 and 175,314.48

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Solution

The fourth proportional to 318,522.84, 439,581.06 and 175,314.48 is: 241,944.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,522.84 : 439,581.06 = 175,314.48 : x
  2. Step 2: Convert to fraction form
    318,522.84/439,581.06 = 175,314.48/x
  3. Step 3: Cross multiply
    318,522.84x = 439,581.06 × 175,314.48
  4. Step 4: Simplify right side
    318,522.84x = 77,064,924,951.75
  5. Step 5: Solve for x
    x = 77,064,924,951.75/318,522.84
  6. Step 6: Final answer
    x = 241,944.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.