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Finding the Fourth Proportional to 612,233.80, 918,480.30 and 185,734.60

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Solution

The fourth proportional to 612,233.80, 918,480.30 and 185,734.60 is: 278,641.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,233.80 : 918,480.30 = 185,734.60 : x
  2. Step 2: Convert to fraction form
    612,233.80/918,480.30 = 185,734.60/x
  3. Step 3: Cross multiply
    612,233.80x = 918,480.30 × 185,734.60
  4. Step 4: Simplify right side
    612,233.80x = 170,593,571,128.38
  5. Step 5: Solve for x
    x = 170,593,571,128.38/612,233.80
  6. Step 6: Final answer
    x = 278,641.22

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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.