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Finding the Fourth Proportional to 248,753.16, 343,279.49 and 141,323.40

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Solution

The fourth proportional to 248,753.16, 343,279.49 and 141,323.40 is: 195,026.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,753.16 : 343,279.49 = 141,323.40 : x
  2. Step 2: Convert to fraction form
    248,753.16/343,279.49 = 141,323.40/x
  3. Step 3: Cross multiply
    248,753.16x = 343,279.49 × 141,323.40
  4. Step 4: Simplify right side
    248,753.16x = 48,513,423,970.45
  5. Step 5: Solve for x
    x = 48,513,423,970.45/248,753.16
  6. Step 6: Final answer
    x = 195,026.36

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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.