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Finding the Fourth Proportional to 356,958.16, 492,597.66 and 203,994.61

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Solution

The fourth proportional to 356,958.16, 492,597.66 and 203,994.61 is: 281,509.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,958.16 : 492,597.66 = 203,994.61 : x
  2. Step 2: Convert to fraction form
    356,958.16/492,597.66 = 203,994.61/x
  3. Step 3: Cross multiply
    356,958.16x = 492,597.66 × 203,994.61
  4. Step 4: Simplify right side
    356,958.16x = 100,487,267,538.61
  5. Step 5: Solve for x
    x = 100,487,267,538.61/356,958.16
  6. Step 6: Final answer
    x = 281,509.93

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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.