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Finding the Fourth Proportional to 368,445.80, 552,668.70 and 181,418.60

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Solution

The fourth proportional to 368,445.80, 552,668.70 and 181,418.60 is: 272,127.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,445.80 : 552,668.70 = 181,418.60 : x
  2. Step 2: Convert to fraction form
    368,445.80/552,668.70 = 181,418.60/x
  3. Step 3: Cross multiply
    368,445.80x = 552,668.70 × 181,418.60
  4. Step 4: Simplify right side
    368,445.80x = 100,264,381,817.82
  5. Step 5: Solve for x
    x = 100,264,381,817.82/368,445.80
  6. Step 6: Final answer
    x = 272,127.90

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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.