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Finding the Fourth Proportional to 192,904.92, 289,376.67 and 66,528.53

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Solution

The fourth proportional to 192,904.92, 289,376.67 and 66,528.53 is: 99,799.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,904.92 : 289,376.67 = 66,528.53 : x
  2. Step 2: Convert to fraction form
    192,904.92/289,376.67 = 66,528.53/x
  3. Step 3: Cross multiply
    192,904.92x = 289,376.67 × 66,528.53
  4. Step 4: Simplify right side
    192,904.92x = 19,251,803,024.51
  5. Step 5: Solve for x
    x = 19,251,803,024.51/192,904.92
  6. Step 6: Final answer
    x = 99,799.44

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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.