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Finding the Fourth Proportional to 66,544,007.70, 99,816,011.55 and 66,544,007.70

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Solution

The fourth proportional to 66,544,007.70, 99,816,011.55 and 66,544,007.70 is: 99,816,011.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,544,007.70 : 99,816,011.55 = 66,544,007.70 : x
  2. Step 2: Convert to fraction form
    66,544,007.70/99,816,011.55 = 66,544,007.70/x
  3. Step 3: Cross multiply
    66,544,007.70x = 99,816,011.55 × 66,544,007.70
  4. Step 4: Simplify right side
    66,544,007.70x = 6,642,157,441,166,489
  5. Step 5: Solve for x
    x = 6,642,157,441,166,489/66,544,007.70
  6. Step 6: Final answer
    x = 99,816,011.55

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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.