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Finding the Fourth Proportional to 192,196.80, 288,064.80 and 98,654.40

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Solution

The fourth proportional to 192,196.80, 288,064.80 and 98,654.40 is: 147,863.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,196.80 : 288,064.80 = 98,654.40 : x
  2. Step 2: Convert to fraction form
    192,196.80/288,064.80 = 98,654.40/x
  3. Step 3: Cross multiply
    192,196.80x = 288,064.80 × 98,654.40
  4. Step 4: Simplify right side
    192,196.80x = 28,418,860,005.12
  5. Step 5: Solve for x
    x = 28,418,860,005.12/192,196.80
  6. Step 6: Final answer
    x = 147,863.34

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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.