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Finding the Fourth Proportional to 218,482, 327,740.78 and 60,710.46

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Solution

The fourth proportional to 218,482, 327,740.78 and 60,710.46 is: 91,070.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,482 : 327,740.78 = 60,710.46 : x
  2. Step 2: Convert to fraction form
    218,482/327,740.78 = 60,710.46/x
  3. Step 3: Cross multiply
    218,482x = 327,740.78 × 60,710.46
  4. Step 4: Simplify right side
    218,482x = 19,897,293,514.56
  5. Step 5: Solve for x
    x = 19,897,293,514.56/218,482
  6. Step 6: Final answer
    x = 91,070.63

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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.