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Finding the Fourth Proportional to 147,611.97, 203,468.76 and 99,782.28

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Solution

The fourth proportional to 147,611.97, 203,468.76 and 99,782.28 is: 137,540.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,611.97 : 203,468.76 = 99,782.28 : x
  2. Step 2: Convert to fraction form
    147,611.97/203,468.76 = 99,782.28/x
  3. Step 3: Cross multiply
    147,611.97x = 203,468.76 × 99,782.28
  4. Step 4: Simplify right side
    147,611.97x = 20,302,576,781.57
  5. Step 5: Solve for x
    x = 20,302,576,781.57/147,611.97
  6. Step 6: Final answer
    x = 137,540.18

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1.5x scale

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.