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Finding the Fourth Proportional to 212,306.01, 318,476.36 and 60,514.78

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Solution

The fourth proportional to 212,306.01, 318,476.36 and 60,514.78 is: 90,777.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,306.01 : 318,476.36 = 60,514.78 : x
  2. Step 2: Convert to fraction form
    212,306.01/318,476.36 = 60,514.78/x
  3. Step 3: Cross multiply
    212,306.01x = 318,476.36 × 60,514.78
  4. Step 4: Simplify right side
    212,306.01x = 19,272,526,215.70
  5. Step 5: Solve for x
    x = 19,272,526,215.70/212,306.01
  6. Step 6: Final answer
    x = 90,777.11

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1.5x scale

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.