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Finding the Fourth Proportional to 247,712.68, 371,473.93 and 105,467.77

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Solution

The fourth proportional to 247,712.68, 371,473.93 and 105,467.77 is: 158,161.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,712.68 : 371,473.93 = 105,467.77 : x
  2. Step 2: Convert to fraction form
    247,712.68/371,473.93 = 105,467.77/x
  3. Step 3: Cross multiply
    247,712.68x = 371,473.93 × 105,467.77
  4. Step 4: Simplify right side
    247,712.68x = 39,178,527,010.24
  5. Step 5: Solve for x
    x = 39,178,527,010.24/247,712.68
  6. Step 6: Final answer
    x = 158,161.17

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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.