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Finding the Fourth Proportional to 73,886.37, 101,963.85 and 42,057.32

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Solution

The fourth proportional to 73,886.37, 101,963.85 and 42,057.32 is: 58,039.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,886.37 : 101,963.85 = 42,057.32 : x
  2. Step 2: Convert to fraction form
    73,886.37/101,963.85 = 42,057.32/x
  3. Step 3: Cross multiply
    73,886.37x = 101,963.85 × 42,057.32
  4. Step 4: Simplify right side
    73,886.37x = 4,288,326,057.60
  5. Step 5: Solve for x
    x = 4,288,326,057.60/73,886.37
  6. Step 6: Final answer
    x = 58,039.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.