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Finding the Fourth Proportional to 73,648.48, 101,636.88 and 40,116.64

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Solution

The fourth proportional to 73,648.48, 101,636.88 and 40,116.64 is: 55,362.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,648.48 : 101,636.88 = 40,116.64 : x
  2. Step 2: Convert to fraction form
    73,648.48/101,636.88 = 40,116.64/x
  3. Step 3: Cross multiply
    73,648.48x = 101,636.88 × 40,116.64
  4. Step 4: Simplify right side
    73,648.48x = 4,077,330,125.68
  5. Step 5: Solve for x
    x = 4,077,330,125.68/73,648.48
  6. Step 6: Final answer
    x = 55,362.04

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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.