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Finding the Fourth Proportional to 101,087.58, 151,315.83 and 74,463.58

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Solution

The fourth proportional to 101,087.58, 151,315.83 and 74,463.58 is: 111,462.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,087.58 : 151,315.83 = 74,463.58 : x
  2. Step 2: Convert to fraction form
    101,087.58/151,315.83 = 74,463.58/x
  3. Step 3: Cross multiply
    101,087.58x = 151,315.83 × 74,463.58
  4. Step 4: Simplify right side
    101,087.58x = 11,267,518,412.47
  5. Step 5: Solve for x
    x = 11,267,518,412.47/101,087.58
  6. Step 6: Final answer
    x = 111,462.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.