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Finding the Fourth Proportional to 218,409.78, 327,505.04 and 127,254.69

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Solution

The fourth proportional to 218,409.78, 327,505.04 and 127,254.69 is: 190,818.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,409.78 : 327,505.04 = 127,254.69 : x
  2. Step 2: Convert to fraction form
    218,409.78/327,505.04 = 127,254.69/x
  3. Step 3: Cross multiply
    218,409.78x = 327,505.04 × 127,254.69
  4. Step 4: Simplify right side
    218,409.78x = 41,676,552,338.64
  5. Step 5: Solve for x
    x = 41,676,552,338.64/218,409.78
  6. Step 6: Final answer
    x = 190,818.16

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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.