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Finding the Fourth Proportional to 268,493.90, 370,522.92 and 147,642.98

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Solution

The fourth proportional to 268,493.90, 370,522.92 and 147,642.98 is: 203,748.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,493.90 : 370,522.92 = 147,642.98 : x
  2. Step 2: Convert to fraction form
    268,493.90/370,522.92 = 147,642.98/x
  3. Step 3: Cross multiply
    268,493.90x = 370,522.92 × 147,642.98
  4. Step 4: Simplify right side
    268,493.90x = 54,705,108,067.10
  5. Step 5: Solve for x
    x = 54,705,108,067.10/268,493.90
  6. Step 6: Final answer
    x = 203,748.05

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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.