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Finding the Fourth Proportional to 247,696.80, 371,472.30 and 70,219.32

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Solution

The fourth proportional to 247,696.80, 371,472.30 and 70,219.32 is: 105,308.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,696.80 : 371,472.30 = 70,219.32 : x
  2. Step 2: Convert to fraction form
    247,696.80/371,472.30 = 70,219.32/x
  3. Step 3: Cross multiply
    247,696.80x = 371,472.30 × 70,219.32
  4. Step 4: Simplify right side
    247,696.80x = 26,084,532,304.84
  5. Step 5: Solve for x
    x = 26,084,532,304.84/247,696.80
  6. Step 6: Final answer
    x = 105,308.31

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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.