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Finding the Fourth Proportional to 73,853.94, 101,917.90 and 40,319.94

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Solution

The fourth proportional to 73,853.94, 101,917.90 and 40,319.94 is: 55,641.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,853.94 : 101,917.90 = 40,319.94 : x
  2. Step 2: Convert to fraction form
    73,853.94/101,917.90 = 40,319.94/x
  3. Step 3: Cross multiply
    73,853.94x = 101,917.90 × 40,319.94
  4. Step 4: Simplify right side
    73,853.94x = 4,109,323,612.93
  5. Step 5: Solve for x
    x = 4,109,323,612.93/73,853.94
  6. Step 6: Final answer
    x = 55,641.22

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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.