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Finding the Fourth Proportional to 66,440,399.40, 92,789,811 and 66,440,399.40

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Solution

The fourth proportional to 66,440,399.40, 92,789,811 and 66,440,399.40 is: 92,789,811

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,440,399.40 : 92,789,811 = 66,440,399.40 : x
  2. Step 2: Convert to fraction form
    66,440,399.40/92,789,811 = 66,440,399.40/x
  3. Step 3: Cross multiply
    66,440,399.40x = 92,789,811 × 66,440,399.40
  4. Step 4: Simplify right side
    66,440,399.40x = 6,164,992,103,090,513
  5. Step 5: Solve for x
    x = 6,164,992,103,090,513/66,440,399.40
  6. Step 6: Final answer
    x = 92,789,811

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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.