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Finding the Fourth Proportional to 69,704,015.20, 104,356,957.20 and 67,713,359.20

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Solution

The fourth proportional to 69,704,015.20, 104,356,957.20 and 67,713,359.20 is: 101,376,658.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,704,015.20 : 104,356,957.20 = 67,713,359.20 : x
  2. Step 2: Convert to fraction form
    69,704,015.20/104,356,957.20 = 67,713,359.20/x
  3. Step 3: Cross multiply
    69,704,015.20x = 104,356,957.20 × 67,713,359.20
  4. Step 4: Simplify right side
    69,704,015.20x = 7,066,360,127,902,627
  5. Step 5: Solve for x
    x = 7,066,360,127,902,627/69,704,015.20
  6. Step 6: Final answer
    x = 101,376,658.25

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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.