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Finding the Fourth Proportional to 203,369.32, 305,053.98 and 70,252.84

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Solution

The fourth proportional to 203,369.32, 305,053.98 and 70,252.84 is: 105,379.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,369.32 : 305,053.98 = 70,252.84 : x
  2. Step 2: Convert to fraction form
    203,369.32/305,053.98 = 70,252.84/x
  3. Step 3: Cross multiply
    203,369.32x = 305,053.98 × 70,252.84
  4. Step 4: Simplify right side
    203,369.32x = 21,430,908,448.30
  5. Step 5: Solve for x
    x = 21,430,908,448.30/203,369.32
  6. Step 6: Final answer
    x = 105,379.26

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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.