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Finding the Fourth Proportional to 248,443.52, 342,847.68 and 135,264.32

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Solution

The fourth proportional to 248,443.52, 342,847.68 and 135,264.32 is: 186,662.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,443.52 : 342,847.68 = 135,264.32 : x
  2. Step 2: Convert to fraction form
    248,443.52/342,847.68 = 135,264.32/x
  3. Step 3: Cross multiply
    248,443.52x = 342,847.68 × 135,264.32
  4. Step 4: Simplify right side
    248,443.52x = 46,375,058,298.78
  5. Step 5: Solve for x
    x = 46,375,058,298.78/248,443.52
  6. Step 6: Final answer
    x = 186,662.38

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1.5x scale

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.