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Finding the Fourth Proportional to 5,294,145.70, 7,941,218.55 and 5,294,145.70

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Solution

The fourth proportional to 5,294,145.70, 7,941,218.55 and 5,294,145.70 is: 7,941,218.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,294,145.70 : 7,941,218.55 = 5,294,145.70 : x
  2. Step 2: Convert to fraction form
    5,294,145.70/7,941,218.55 = 5,294,145.70/x
  3. Step 3: Cross multiply
    5,294,145.70x = 7,941,218.55 × 5,294,145.70
  4. Step 4: Simplify right side
    5,294,145.70x = 42,041,968,039,242.73
  5. Step 5: Solve for x
    x = 42,041,968,039,242.73/5,294,145.70
  6. Step 6: Final answer
    x = 7,941,218.55

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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.