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Finding the Fourth Proportional to 172,103.28, 236,660.28 and 149,402.59

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Solution

The fourth proportional to 172,103.28, 236,660.28 and 149,402.59 is: 205,444.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,103.28 : 236,660.28 = 149,402.59 : x
  2. Step 2: Convert to fraction form
    172,103.28/236,660.28 = 149,402.59/x
  3. Step 3: Cross multiply
    172,103.28x = 236,660.28 × 149,402.59
  4. Step 4: Simplify right side
    172,103.28x = 35,357,658,035.11
  5. Step 5: Solve for x
    x = 35,357,658,035.11/172,103.28
  6. Step 6: Final answer
    x = 205,444.42

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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.