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Finding the Fourth Proportional to 73,639.86, 101,605.37 and 43,422.81

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Solution

The fourth proportional to 73,639.86, 101,605.37 and 43,422.81 is: 59,913.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,639.86 : 101,605.37 = 43,422.81 : x
  2. Step 2: Convert to fraction form
    73,639.86/101,605.37 = 43,422.81/x
  3. Step 3: Cross multiply
    73,639.86x = 101,605.37 × 43,422.81
  4. Step 4: Simplify right side
    73,639.86x = 4,411,990,459.38
  5. Step 5: Solve for x
    x = 4,411,990,459.38/73,639.86
  6. Step 6: Final answer
    x = 59,913.08

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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.