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Finding the Fourth Proportional to 243,348.03, 335,801.34 and 141,356.61

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Solution

The fourth proportional to 243,348.03, 335,801.34 and 141,356.61 is: 195,061.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,348.03 : 335,801.34 = 141,356.61 : x
  2. Step 2: Convert to fraction form
    243,348.03/335,801.34 = 141,356.61/x
  3. Step 3: Cross multiply
    243,348.03x = 335,801.34 × 141,356.61
  4. Step 4: Simplify right side
    243,348.03x = 47,467,739,055.86
  5. Step 5: Solve for x
    x = 47,467,739,055.86/243,348.03
  6. Step 6: Final answer
    x = 195,061.12

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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.