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Finding the Fourth Proportional to 216,697.52, 325,054.78 and 66,924.48

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Solution

The fourth proportional to 216,697.52, 325,054.78 and 66,924.48 is: 100,389.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,697.52 : 325,054.78 = 66,924.48 : x
  2. Step 2: Convert to fraction form
    216,697.52/325,054.78 = 66,924.48/x
  3. Step 3: Cross multiply
    216,697.52x = 325,054.78 × 66,924.48
  4. Step 4: Simplify right side
    216,697.52x = 21,754,122,123.01
  5. Step 5: Solve for x
    x = 21,754,122,123.01/216,697.52
  6. Step 6: Final answer
    x = 100,389.35

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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.