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Finding the Fourth Proportional to 177,174.60, 265,713.30 and 72,004.20

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Solution

The fourth proportional to 177,174.60, 265,713.30 and 72,004.20 is: 107,986.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,174.60 : 265,713.30 = 72,004.20 : x
  2. Step 2: Convert to fraction form
    177,174.60/265,713.30 = 72,004.20/x
  3. Step 3: Cross multiply
    177,174.60x = 265,713.30 × 72,004.20
  4. Step 4: Simplify right side
    177,174.60x = 19,132,473,595.86
  5. Step 5: Solve for x
    x = 19,132,473,595.86/177,174.60
  6. Step 6: Final answer
    x = 107,986.55

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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.