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Finding the Fourth Proportional to 260,626.68, 359,672.40 and 147,447

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Solution

The fourth proportional to 260,626.68, 359,672.40 and 147,447 is: 203,481.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,626.68 : 359,672.40 = 147,447 : x
  2. Step 2: Convert to fraction form
    260,626.68/359,672.40 = 147,447/x
  3. Step 3: Cross multiply
    260,626.68x = 359,672.40 × 147,447
  4. Step 4: Simplify right side
    260,626.68x = 53,032,616,362.80
  5. Step 5: Solve for x
    x = 53,032,616,362.80/260,626.68
  6. Step 6: Final answer
    x = 203,481.15

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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.