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Finding the Fourth Proportional to 111,658.94, 154,089.95 and 60,672.07

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Solution

The fourth proportional to 111,658.94, 154,089.95 and 60,672.07 is: 83,727.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,658.94 : 154,089.95 = 60,672.07 : x
  2. Step 2: Convert to fraction form
    111,658.94/154,089.95 = 60,672.07/x
  3. Step 3: Cross multiply
    111,658.94x = 154,089.95 × 60,672.07
  4. Step 4: Simplify right side
    111,658.94x = 9,348,956,232.70
  5. Step 5: Solve for x
    x = 9,348,956,232.70/111,658.94
  6. Step 6: Final answer
    x = 83,727.79

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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.