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Finding the Fourth Proportional to 194,325,979.20, 291,488,968.80 and 194,325,979.20

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Solution

The fourth proportional to 194,325,979.20, 291,488,968.80 and 194,325,979.20 is: 291,488,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,325,979.20 : 291,488,968.80 = 194,325,979.20 : x
  2. Step 2: Convert to fraction form
    194,325,979.20/291,488,968.80 = 194,325,979.20/x
  3. Step 3: Cross multiply
    194,325,979.20x = 291,488,968.80 × 194,325,979.20
  4. Step 4: Simplify right side
    194,325,979.20x = 56,643,879,288,058,248
  5. Step 5: Solve for x
    x = 56,643,879,288,058,248/194,325,979.20
  6. Step 6: Final answer
    x = 291,488,968.80

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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.