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Finding the Fourth Proportional to 193,615.68, 290,248.56 and 134,479.20

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Solution

The fourth proportional to 193,615.68, 290,248.56 and 134,479.20 is: 201,597.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,615.68 : 290,248.56 = 134,479.20 : x
  2. Step 2: Convert to fraction form
    193,615.68/290,248.56 = 134,479.20/x
  3. Step 3: Cross multiply
    193,615.68x = 290,248.56 × 134,479.20
  4. Step 4: Simplify right side
    193,615.68x = 39,032,394,149.95
  5. Step 5: Solve for x
    x = 39,032,394,149.95/193,615.68
  6. Step 6: Final answer
    x = 201,597.28

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1.5x scale

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.