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Finding the Fourth Proportional to 196,992,489.80, 295,488,734.70 and 94,703,875.40

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Solution

The fourth proportional to 196,992,489.80, 295,488,734.70 and 94,703,875.40 is: 142,055,813.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,992,489.80 : 295,488,734.70 = 94,703,875.40 : x
  2. Step 2: Convert to fraction form
    196,992,489.80/295,488,734.70 = 94,703,875.40/x
  3. Step 3: Cross multiply
    196,992,489.80x = 295,488,734.70 × 94,703,875.40
  4. Step 4: Simplify right side
    196,992,489.80x = 27,983,928,313,132,456
  5. Step 5: Solve for x
    x = 27,983,928,313,132,456/196,992,489.80
  6. Step 6: Final answer
    x = 142,055,813.10

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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.