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Finding the Fourth Proportional to 39,855,794.40, 59,689,213.20 and 39,855,794.40

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Solution

The fourth proportional to 39,855,794.40, 59,689,213.20 and 39,855,794.40 is: 59,689,213.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,855,794.40 : 59,689,213.20 = 39,855,794.40 : x
  2. Step 2: Convert to fraction form
    39,855,794.40/59,689,213.20 = 39,855,794.40/x
  3. Step 3: Cross multiply
    39,855,794.40x = 59,689,213.20 × 39,855,794.40
  4. Step 4: Simplify right side
    39,855,794.40x = 2,378,961,009,196,966
  5. Step 5: Solve for x
    x = 2,378,961,009,196,966/39,855,794.40
  6. Step 6: Final answer
    x = 59,689,213.20

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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.