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Finding the Fourth Proportional to 192,862.16, 289,284.60 and 52,620.32

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Solution

The fourth proportional to 192,862.16, 289,284.60 and 52,620.32 is: 78,928.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,862.16 : 289,284.60 = 52,620.32 : x
  2. Step 2: Convert to fraction form
    192,862.16/289,284.60 = 52,620.32/x
  3. Step 3: Cross multiply
    192,862.16x = 289,284.60 × 52,620.32
  4. Step 4: Simplify right side
    192,862.16x = 15,222,248,223.07
  5. Step 5: Solve for x
    x = 15,222,248,223.07/192,862.16
  6. Step 6: Final answer
    x = 78,928.12

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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.