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Finding the Fourth Proportional to 101,707.57, 152,561.36 and 39,378.07

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Solution

The fourth proportional to 101,707.57, 152,561.36 and 39,378.07 is: 59,067.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,707.57 : 152,561.36 = 39,378.07 : x
  2. Step 2: Convert to fraction form
    101,707.57/152,561.36 = 39,378.07/x
  3. Step 3: Cross multiply
    101,707.57x = 152,561.36 × 39,378.07
  4. Step 4: Simplify right side
    101,707.57x = 6,007,571,913.38
  5. Step 5: Solve for x
    x = 6,007,571,913.38/101,707.57
  6. Step 6: Final answer
    x = 59,067.11

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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.