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Finding the Fourth Proportional to 177,353.68, 265,928.12 and 121,261.72

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Solution

The fourth proportional to 177,353.68, 265,928.12 and 121,261.72 is: 181,822.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,353.68 : 265,928.12 = 121,261.72 : x
  2. Step 2: Convert to fraction form
    177,353.68/265,928.12 = 121,261.72/x
  3. Step 3: Cross multiply
    177,353.68x = 265,928.12 × 121,261.72
  4. Step 4: Simplify right side
    177,353.68x = 32,246,901,227.57
  5. Step 5: Solve for x
    x = 32,246,901,227.57/177,353.68
  6. Step 6: Final answer
    x = 181,822.57

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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.