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Finding the Fourth Proportional to 73,653, 101,641.26 and 40,119

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Solution

The fourth proportional to 73,653, 101,641.26 and 40,119 is: 55,364.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,653 : 101,641.26 = 40,119 : x
  2. Step 2: Convert to fraction form
    73,653/101,641.26 = 40,119/x
  3. Step 3: Cross multiply
    73,653x = 101,641.26 × 40,119
  4. Step 4: Simplify right side
    73,653x = 4,077,745,709.94
  5. Step 5: Solve for x
    x = 4,077,745,709.94/73,653
  6. Step 6: Final answer
    x = 55,364.29

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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.