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Finding the Fourth Proportional to 73,100.60, 100,895.48 and 47,561.90

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Solution

The fourth proportional to 73,100.60, 100,895.48 and 47,561.90 is: 65,646.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,100.60 : 100,895.48 = 47,561.90 : x
  2. Step 2: Convert to fraction form
    73,100.60/100,895.48 = 47,561.90/x
  3. Step 3: Cross multiply
    73,100.60x = 100,895.48 × 47,561.90
  4. Step 4: Simplify right side
    73,100.60x = 4,798,781,101.36
  5. Step 5: Solve for x
    x = 4,798,781,101.36/73,100.60
  6. Step 6: Final answer
    x = 65,646.27

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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.