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Finding the Fourth Proportional to 399,627.49, 599,051.62 and 159,669.85

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Solution

The fourth proportional to 399,627.49, 599,051.62 and 159,669.85 is: 239,349.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,627.49 : 599,051.62 = 159,669.85 : x
  2. Step 2: Convert to fraction form
    399,627.49/599,051.62 = 159,669.85/x
  3. Step 3: Cross multiply
    399,627.49x = 599,051.62 × 159,669.85
  4. Step 4: Simplify right side
    399,627.49x = 95,650,482,307.66
  5. Step 5: Solve for x
    x = 95,650,482,307.66/399,627.49
  6. Step 6: Final answer
    x = 239,349.11

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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.