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Finding the Fourth Proportional to 292,866.30, 438,797.96 and 159,839.90

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Solution

The fourth proportional to 292,866.30, 438,797.96 and 159,839.90 is: 239,486.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,866.30 : 438,797.96 = 159,839.90 : x
  2. Step 2: Convert to fraction form
    292,866.30/438,797.96 = 159,839.90/x
  3. Step 3: Cross multiply
    292,866.30x = 438,797.96 × 159,839.90
  4. Step 4: Simplify right side
    292,866.30x = 70,137,422,046.60
  5. Step 5: Solve for x
    x = 70,137,422,046.60/292,866.30
  6. Step 6: Final answer
    x = 239,486.15

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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.