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Finding the Fourth Proportional to 111,898.89, 154,422.44 and 60,913.08

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Solution

The fourth proportional to 111,898.89, 154,422.44 and 60,913.08 is: 84,061.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,898.89 : 154,422.44 = 60,913.08 : x
  2. Step 2: Convert to fraction form
    111,898.89/154,422.44 = 60,913.08/x
  3. Step 3: Cross multiply
    111,898.89x = 154,422.44 × 60,913.08
  4. Step 4: Simplify right side
    111,898.89x = 9,406,346,441.52
  5. Step 5: Solve for x
    x = 9,406,346,441.52/111,898.89
  6. Step 6: Final answer
    x = 84,061.12

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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.