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Finding the Fourth Proportional to 177,218.60, 265,751.10 and 72,002.60

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Solution

The fourth proportional to 177,218.60, 265,751.10 and 72,002.60 is: 107,972.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,218.60 : 265,751.10 = 72,002.60 : x
  2. Step 2: Convert to fraction form
    177,218.60/265,751.10 = 72,002.60/x
  3. Step 3: Cross multiply
    177,218.60x = 265,751.10 × 72,002.60
  4. Step 4: Simplify right side
    177,218.60x = 19,134,770,152.86
  5. Step 5: Solve for x
    x = 19,134,770,152.86/177,218.60
  6. Step 6: Final answer
    x = 107,972.70

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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.