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Finding the Third Proportional to 66,203,520 and 103,329,408

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Solution

The third proportional to 66,203,520 and 103,329,408 is: 161,274,907.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,203,520 : 103,329,408 = 103,329,408 : x
  2. Step 2: Convert to fraction form
    66,203,520/103,329,408 = 103,329,408/x
  3. Step 3: Cross multiply
    66,203,520x = 103,329,408 × 103,329,408
  4. Step 4: Simplify right side
    66,203,520x = 10,676,966,557,630,464
  5. Step 5: Solve for x
    x = 10,676,966,557,630,464/66,203,520
  6. Step 6: Final answer
    x = 161,274,907.40

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.