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Finding the Fourth Proportional to 218,395.32, 327,556.53 and 60,639.72

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Solution

The fourth proportional to 218,395.32, 327,556.53 and 60,639.72 is: 90,949.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,395.32 : 327,556.53 = 60,639.72 : x
  2. Step 2: Convert to fraction form
    218,395.32/327,556.53 = 60,639.72/x
  3. Step 3: Cross multiply
    218,395.32x = 327,556.53 × 60,639.72
  4. Step 4: Simplify right side
    218,395.32x = 19,862,936,263.37
  5. Step 5: Solve for x
    x = 19,862,936,263.37/218,395.32
  6. Step 6: Final answer
    x = 90,949.46

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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.