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Finding the Fourth Proportional to 73,161.84, 100,925.48 and 42,926.88

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Solution

The fourth proportional to 73,161.84, 100,925.48 and 42,926.88 is: 59,216.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,161.84 : 100,925.48 = 42,926.88 : x
  2. Step 2: Convert to fraction form
    73,161.84/100,925.48 = 42,926.88/x
  3. Step 3: Cross multiply
    73,161.84x = 100,925.48 × 42,926.88
  4. Step 4: Simplify right side
    73,161.84x = 4,332,415,968.90
  5. Step 5: Solve for x
    x = 4,332,415,968.90/73,161.84
  6. Step 6: Final answer
    x = 59,216.88

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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.