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Finding the Fourth Proportional to 328,310.01, 492,439.10 and 103,677.17

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Solution

The fourth proportional to 328,310.01, 492,439.10 and 103,677.17 is: 155,507.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,310.01 : 492,439.10 = 103,677.17 : x
  2. Step 2: Convert to fraction form
    328,310.01/492,439.10 = 103,677.17/x
  3. Step 3: Cross multiply
    328,310.01x = 492,439.10 × 103,677.17
  4. Step 4: Simplify right side
    328,310.01x = 51,054,689,304.77
  5. Step 5: Solve for x
    x = 51,054,689,304.77/328,310.01
  6. Step 6: Final answer
    x = 155,507.56

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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.