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Finding the Fourth Proportional to 247,712.18, 371,473.19 and 105,467.27

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Solution

The fourth proportional to 247,712.18, 371,473.19 and 105,467.27 is: 158,160.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,712.18 : 371,473.19 = 105,467.27 : x
  2. Step 2: Convert to fraction form
    247,712.18/371,473.19 = 105,467.27/x
  3. Step 3: Cross multiply
    247,712.18x = 371,473.19 × 105,467.27
  4. Step 4: Simplify right side
    247,712.18x = 39,178,262,700.16
  5. Step 5: Solve for x
    x = 39,178,262,700.16/247,712.18
  6. Step 6: Final answer
    x = 158,160.42

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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.