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Finding the Fourth Proportional to 73,652, 101,640.16 and 40,118.08

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Solution

The fourth proportional to 73,652, 101,640.16 and 40,118.08 is: 55,363.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,652 : 101,640.16 = 40,118.08 : x
  2. Step 2: Convert to fraction form
    73,652/101,640.16 = 40,118.08/x
  3. Step 3: Cross multiply
    73,652x = 101,640.16 × 40,118.08
  4. Step 4: Simplify right side
    73,652x = 4,077,608,070.09
  5. Step 5: Solve for x
    x = 4,077,608,070.09/73,652
  6. Step 6: Final answer
    x = 55,363.17

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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.