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Finding the Third Proportional to 129,768,552 and 200,866,074

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Solution

The third proportional to 129,768,552 and 200,866,074 is: 310,916,466.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,768,552 : 200,866,074 = 200,866,074 : x
  2. Step 2: Convert to fraction form
    129,768,552/200,866,074 = 200,866,074/x
  3. Step 3: Cross multiply
    129,768,552x = 200,866,074 × 200,866,074
  4. Step 4: Simplify right side
    129,768,552x = 40,347,179,684,173,472
  5. Step 5: Solve for x
    x = 40,347,179,684,173,472/129,768,552
  6. Step 6: Final answer
    x = 310,916,466.76

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.