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Finding the Fourth Proportional to 328,601.80, 492,756.90 and 151,017.40

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Solution

The fourth proportional to 328,601.80, 492,756.90 and 151,017.40 is: 226,459.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,601.80 : 492,756.90 = 151,017.40 : x
  2. Step 2: Convert to fraction form
    328,601.80/492,756.90 = 151,017.40/x
  3. Step 3: Cross multiply
    328,601.80x = 492,756.90 × 151,017.40
  4. Step 4: Simplify right side
    328,601.80x = 74,414,865,870.06
  5. Step 5: Solve for x
    x = 74,414,865,870.06/328,601.80
  6. Step 6: Final answer
    x = 226,459.09

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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.