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Finding the Fourth Proportional to 412,110.40, 617,870.40 and 159,174.40

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Solution

The fourth proportional to 412,110.40, 617,870.40 and 159,174.40 is: 238,647.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,110.40 : 617,870.40 = 159,174.40 : x
  2. Step 2: Convert to fraction form
    412,110.40/617,870.40 = 159,174.40/x
  3. Step 3: Cross multiply
    412,110.40x = 617,870.40 × 159,174.40
  4. Step 4: Simplify right side
    412,110.40x = 98,349,150,197.76
  5. Step 5: Solve for x
    x = 98,349,150,197.76/412,110.40
  6. Step 6: Final answer
    x = 238,647.58

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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.