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Finding the Fourth Proportional to 188,358.84, 259,934.13 and 103,474.08

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Solution

The fourth proportional to 188,358.84, 259,934.13 and 103,474.08 is: 142,793.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,358.84 : 259,934.13 = 103,474.08 : x
  2. Step 2: Convert to fraction form
    188,358.84/259,934.13 = 103,474.08/x
  3. Step 3: Cross multiply
    188,358.84x = 259,934.13 × 103,474.08
  4. Step 4: Simplify right side
    188,358.84x = 26,896,444,962.35
  5. Step 5: Solve for x
    x = 26,896,444,962.35/188,358.84
  6. Step 6: Final answer
    x = 142,793.64

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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.