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Finding the Fourth Proportional to 338,806.56, 508,220.40 and 125,627.52

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Solution

The fourth proportional to 338,806.56, 508,220.40 and 125,627.52 is: 188,445.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,806.56 : 508,220.40 = 125,627.52 : x
  2. Step 2: Convert to fraction form
    338,806.56/508,220.40 = 125,627.52/x
  3. Step 3: Cross multiply
    338,806.56x = 508,220.40 × 125,627.52
  4. Step 4: Simplify right side
    338,806.56x = 63,846,468,465.41
  5. Step 5: Solve for x
    x = 63,846,468,465.41/338,806.56
  6. Step 6: Final answer
    x = 188,445.20

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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.