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Finding the Fourth Proportional to 61,152.51, 91,718.93 and 16,768.97

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Solution

The fourth proportional to 61,152.51, 91,718.93 and 16,768.97 is: 25,150.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,152.51 : 91,718.93 = 16,768.97 : x
  2. Step 2: Convert to fraction form
    61,152.51/91,718.93 = 16,768.97/x
  3. Step 3: Cross multiply
    61,152.51x = 91,718.93 × 16,768.97
  4. Step 4: Simplify right side
    61,152.51x = 1,538,031,443.16
  5. Step 5: Solve for x
    x = 1,538,031,443.16/61,152.51
  6. Step 6: Final answer
    x = 25,150.75

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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.