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Finding the Fourth Proportional to 49,864,015.20, 70,011,175.20 and 49,864,015.20

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Solution

The fourth proportional to 49,864,015.20, 70,011,175.20 and 49,864,015.20 is: 70,011,175.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,864,015.20 : 70,011,175.20 = 49,864,015.20 : x
  2. Step 2: Convert to fraction form
    49,864,015.20/70,011,175.20 = 49,864,015.20/x
  3. Step 3: Cross multiply
    49,864,015.20x = 70,011,175.20 × 49,864,015.20
  4. Step 4: Simplify right side
    49,864,015.20x = 3,491,038,304,342,663.50
  5. Step 5: Solve for x
    x = 3,491,038,304,342,663.50/49,864,015.20
  6. Step 6: Final answer
    x = 70,011,175.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.