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Finding the Fourth Proportional to 248,275.25, 342,965.71 and 239,058.06

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Solution

The fourth proportional to 248,275.25, 342,965.71 and 239,058.06 is: 330,233.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,275.25 : 342,965.71 = 239,058.06 : x
  2. Step 2: Convert to fraction form
    248,275.25/342,965.71 = 239,058.06/x
  3. Step 3: Cross multiply
    248,275.25x = 342,965.71 × 239,058.06
  4. Step 4: Simplify right side
    248,275.25x = 81,988,717,279.12
  5. Step 5: Solve for x
    x = 81,988,717,279.12/248,275.25
  6. Step 6: Final answer
    x = 330,233.15

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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.