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Finding the Fourth Proportional to 111,227.50, 153,493.95 and 60,926.50

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Solution

The fourth proportional to 111,227.50, 153,493.95 and 60,926.50 is: 84,078.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,227.50 : 153,493.95 = 60,926.50 : x
  2. Step 2: Convert to fraction form
    111,227.50/153,493.95 = 60,926.50/x
  3. Step 3: Cross multiply
    111,227.50x = 153,493.95 × 60,926.50
  4. Step 4: Simplify right side
    111,227.50x = 9,351,849,144.68
  5. Step 5: Solve for x
    x = 9,351,849,144.68/111,227.50
  6. Step 6: Final answer
    x = 84,078.57

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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.