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Finding the Fourth Proportional to 101,911.47, 152,700.75 and 61,942.68

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Solution

The fourth proportional to 101,911.47, 152,700.75 and 61,942.68 is: 92,812.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,911.47 : 152,700.75 = 61,942.68 : x
  2. Step 2: Convert to fraction form
    101,911.47/152,700.75 = 61,942.68/x
  3. Step 3: Cross multiply
    101,911.47x = 152,700.75 × 61,942.68
  4. Step 4: Simplify right side
    101,911.47x = 9,458,693,693.01
  5. Step 5: Solve for x
    x = 9,458,693,693.01/101,911.47
  6. Step 6: Final answer
    x = 92,812.85

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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.