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Finding the Fourth Proportional to 73,403.69, 110,131.65 and 45,291.02

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Solution

The fourth proportional to 73,403.69, 110,131.65 and 45,291.02 is: 67,952.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,403.69 : 110,131.65 = 45,291.02 : x
  2. Step 2: Convert to fraction form
    73,403.69/110,131.65 = 45,291.02/x
  3. Step 3: Cross multiply
    73,403.69x = 110,131.65 × 45,291.02
  4. Step 4: Simplify right side
    73,403.69x = 4,987,974,212.12
  5. Step 5: Solve for x
    x = 4,987,974,212.12/73,403.69
  6. Step 6: Final answer
    x = 67,952.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.