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Finding the Fourth Proportional to 102,759.68, 153,751.93 and 60,662.66

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Solution

The fourth proportional to 102,759.68, 153,751.93 and 60,662.66 is: 90,765.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,759.68 : 153,751.93 = 60,662.66 : x
  2. Step 2: Convert to fraction form
    102,759.68/153,751.93 = 60,662.66/x
  3. Step 3: Cross multiply
    102,759.68x = 153,751.93 × 60,662.66
  4. Step 4: Simplify right side
    102,759.68x = 9,327,001,627.88
  5. Step 5: Solve for x
    x = 9,327,001,627.88/102,759.68
  6. Step 6: Final answer
    x = 90,765.19

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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.