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Finding the Fourth Proportional to 216,627.64, 325,101.07 and 102,775.86

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Solution

The fourth proportional to 216,627.64, 325,101.07 and 102,775.86 is: 154,239.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,627.64 : 325,101.07 = 102,775.86 : x
  2. Step 2: Convert to fraction form
    216,627.64/325,101.07 = 102,775.86/x
  3. Step 3: Cross multiply
    216,627.64x = 325,101.07 × 102,775.86
  4. Step 4: Simplify right side
    216,627.64x = 33,412,542,056.17
  5. Step 5: Solve for x
    x = 33,412,542,056.17/216,627.64
  6. Step 6: Final answer
    x = 154,239.52

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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.