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Finding the Fourth Proportional to 235,031.68, 324,356.16 and 134,446.72

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Solution

The fourth proportional to 235,031.68, 324,356.16 and 134,446.72 is: 185,543.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,031.68 : 324,356.16 = 134,446.72 : x
  2. Step 2: Convert to fraction form
    235,031.68/324,356.16 = 134,446.72/x
  3. Step 3: Cross multiply
    235,031.68x = 324,356.16 × 134,446.72
  4. Step 4: Simplify right side
    235,031.68x = 43,608,621,823.80
  5. Step 5: Solve for x
    x = 43,608,621,823.80/235,031.68
  6. Step 6: Final answer
    x = 185,543.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.