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Finding the Fourth Proportional to 192,442.60, 287,886.30 and 166,436.20

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Solution

The fourth proportional to 192,442.60, 287,886.30 and 166,436.20 is: 248,981.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,442.60 : 287,886.30 = 166,436.20 : x
  2. Step 2: Convert to fraction form
    192,442.60/287,886.30 = 166,436.20/x
  3. Step 3: Cross multiply
    192,442.60x = 287,886.30 × 166,436.20
  4. Step 4: Simplify right side
    192,442.60x = 47,914,701,804.06
  5. Step 5: Solve for x
    x = 47,914,701,804.06/192,442.60
  6. Step 6: Final answer
    x = 248,981.78

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1.5x scale

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.