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Finding the Fourth Proportional to 64,176.83, 96,280.59 and 19,201.97

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Solution

The fourth proportional to 64,176.83, 96,280.59 and 19,201.97 is: 28,807.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,176.83 : 96,280.59 = 19,201.97 : x
  2. Step 2: Convert to fraction form
    64,176.83/96,280.59 = 19,201.97/x
  3. Step 3: Cross multiply
    64,176.83x = 96,280.59 × 19,201.97
  4. Step 4: Simplify right side
    64,176.83x = 1,848,777,000.76
  5. Step 5: Solve for x
    x = 1,848,777,000.76/64,176.83
  6. Step 6: Final answer
    x = 28,807.55

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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.