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Finding the Fourth Proportional to 239,653.35, 359,390.32 and 102,859.19

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Solution

The fourth proportional to 239,653.35, 359,390.32 and 102,859.19 is: 154,250.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,653.35 : 359,390.32 = 102,859.19 : x
  2. Step 2: Convert to fraction form
    239,653.35/359,390.32 = 102,859.19/x
  3. Step 3: Cross multiply
    239,653.35x = 359,390.32 × 102,859.19
  4. Step 4: Simplify right side
    239,653.35x = 36,966,595,540.66
  5. Step 5: Solve for x
    x = 36,966,595,540.66/239,653.35
  6. Step 6: Final answer
    x = 154,250.27

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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.