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Finding the Fourth Proportional to 201,007,079.70, 301,510,619.55 and 64,692,463.20

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Solution

The fourth proportional to 201,007,079.70, 301,510,619.55 and 64,692,463.20 is: 97,038,694.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,007,079.70 : 301,510,619.55 = 64,692,463.20 : x
  2. Step 2: Convert to fraction form
    201,007,079.70/301,510,619.55 = 64,692,463.20/x
  3. Step 3: Cross multiply
    201,007,079.70x = 301,510,619.55 × 64,692,463.20
  4. Step 4: Simplify right side
    201,007,079.70x = 19,505,464,659,647,576
  5. Step 5: Solve for x
    x = 19,505,464,659,647,576/201,007,079.70
  6. Step 6: Final answer
    x = 97,038,694.80

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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.