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Finding the Fourth Proportional to 499,908.57, 749,940.59 and 162,870.76

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Solution

The fourth proportional to 499,908.57, 749,940.59 and 162,870.76 is: 244,331.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,908.57 : 749,940.59 = 162,870.76 : x
  2. Step 2: Convert to fraction form
    499,908.57/749,940.59 = 162,870.76/x
  3. Step 3: Cross multiply
    499,908.57x = 749,940.59 × 162,870.76
  4. Step 4: Simplify right side
    499,908.57x = 122,143,393,848.15
  5. Step 5: Solve for x
    x = 122,143,393,848.15/499,908.57
  6. Step 6: Final answer
    x = 244,331.47

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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.