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Finding the Fourth Proportional to 248,359.92, 342,734.94 and 135,182.68

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Solution

The fourth proportional to 248,359.92, 342,734.94 and 135,182.68 is: 186,551.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,359.92 : 342,734.94 = 135,182.68 : x
  2. Step 2: Convert to fraction form
    248,359.92/342,734.94 = 135,182.68/x
  3. Step 3: Cross multiply
    248,359.92x = 342,734.94 × 135,182.68
  4. Step 4: Simplify right side
    248,359.92x = 46,331,827,718.84
  5. Step 5: Solve for x
    x = 46,331,827,718.84/248,359.92
  6. Step 6: Final answer
    x = 186,551.15

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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.