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Finding the Fourth Proportional to 248,702.25, 343,209.15 and 135,525

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Solution

The fourth proportional to 248,702.25, 343,209.15 and 135,525 is: 187,024.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,702.25 : 343,209.15 = 135,525 : x
  2. Step 2: Convert to fraction form
    248,702.25/343,209.15 = 135,525/x
  3. Step 3: Cross multiply
    248,702.25x = 343,209.15 × 135,525
  4. Step 4: Simplify right side
    248,702.25x = 46,513,420,053.75
  5. Step 5: Solve for x
    x = 46,513,420,053.75/248,702.25
  6. Step 6: Final answer
    x = 187,024.52

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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.