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Finding the Fourth Proportional to 168,670.56, 232,766.40 and 93,219.12

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Solution

The fourth proportional to 168,670.56, 232,766.40 and 93,219.12 is: 128,642.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,670.56 : 232,766.40 = 93,219.12 : x
  2. Step 2: Convert to fraction form
    168,670.56/232,766.40 = 93,219.12/x
  3. Step 3: Cross multiply
    168,670.56x = 232,766.40 × 93,219.12
  4. Step 4: Simplify right side
    168,670.56x = 21,698,278,973.57
  5. Step 5: Solve for x
    x = 21,698,278,973.57/168,670.56
  6. Step 6: Final answer
    x = 128,642.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.