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Finding the Fourth Proportional to 274,263.66, 411,424.65 and 74,587.32

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Solution

The fourth proportional to 274,263.66, 411,424.65 and 74,587.32 is: 111,888.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,263.66 : 411,424.65 = 74,587.32 : x
  2. Step 2: Convert to fraction form
    274,263.66/411,424.65 = 74,587.32/x
  3. Step 3: Cross multiply
    274,263.66x = 411,424.65 × 74,587.32
  4. Step 4: Simplify right side
    274,263.66x = 30,687,062,025.44
  5. Step 5: Solve for x
    x = 30,687,062,025.44/274,263.66
  6. Step 6: Final answer
    x = 111,888.91

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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.