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Finding the Fourth Proportional to 332,031.60, 458,225.28 and 188,805

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Solution

The fourth proportional to 332,031.60, 458,225.28 and 188,805 is: 260,563.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,031.60 : 458,225.28 = 188,805 : x
  2. Step 2: Convert to fraction form
    332,031.60/458,225.28 = 188,805/x
  3. Step 3: Cross multiply
    332,031.60x = 458,225.28 × 188,805
  4. Step 4: Simplify right side
    332,031.60x = 86,515,223,990.40
  5. Step 5: Solve for x
    x = 86,515,223,990.40/332,031.60
  6. Step 6: Final answer
    x = 260,563.22

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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.