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Finding the Fourth Proportional to 576,911,266.20, 865,366,899.30 and 167,980,757.40

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Solution

The fourth proportional to 576,911,266.20, 865,366,899.30 and 167,980,757.40 is: 251,971,136.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,911,266.20 : 865,366,899.30 = 167,980,757.40 : x
  2. Step 2: Convert to fraction form
    576,911,266.20/865,366,899.30 = 167,980,757.40/x
  3. Step 3: Cross multiply
    576,911,266.20x = 865,366,899.30 × 167,980,757.40
  4. Step 4: Simplify right side
    576,911,266.20x = 145,364,987,173,303,520
  5. Step 5: Solve for x
    x = 145,364,987,173,303,520/576,911,266.20
  6. Step 6: Final answer
    x = 251,971,136.10

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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.