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Finding the Fourth Proportional to 343,870.94, 515,807.03 and 119,231.82

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Solution

The fourth proportional to 343,870.94, 515,807.03 and 119,231.82 is: 178,847.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,870.94 : 515,807.03 = 119,231.82 : x
  2. Step 2: Convert to fraction form
    343,870.94/515,807.03 = 119,231.82/x
  3. Step 3: Cross multiply
    343,870.94x = 515,807.03 × 119,231.82
  4. Step 4: Simplify right side
    343,870.94x = 61,500,611,253.77
  5. Step 5: Solve for x
    x = 61,500,611,253.77/343,870.94
  6. Step 6: Final answer
    x = 178,847.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.