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Finding the Fourth Proportional to 63,876.67, 95,856.01 and 42,840.47

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Solution

The fourth proportional to 63,876.67, 95,856.01 and 42,840.47 is: 64,288.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,876.67 : 95,856.01 = 42,840.47 : x
  2. Step 2: Convert to fraction form
    63,876.67/95,856.01 = 42,840.47/x
  3. Step 3: Cross multiply
    63,876.67x = 95,856.01 × 42,840.47
  4. Step 4: Simplify right side
    63,876.67x = 4,106,516,653.26
  5. Step 5: Solve for x
    x = 4,106,516,653.26/63,876.67
  6. Step 6: Final answer
    x = 64,288.21

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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.