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Finding the Fourth Proportional to 243,475.93, 335,990.26 and 136,046.85

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Solution

The fourth proportional to 243,475.93, 335,990.26 and 136,046.85 is: 187,741.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,475.93 : 335,990.26 = 136,046.85 : x
  2. Step 2: Convert to fraction form
    243,475.93/335,990.26 = 136,046.85/x
  3. Step 3: Cross multiply
    243,475.93x = 335,990.26 × 136,046.85
  4. Step 4: Simplify right side
    243,475.93x = 45,710,416,503.68
  5. Step 5: Solve for x
    x = 45,710,416,503.68/243,475.93
  6. Step 6: Final answer
    x = 187,741.01

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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.