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Finding the Fourth Proportional to 39,143,677.20, 58,715,515.80 and 39,143,677.20

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Solution

The fourth proportional to 39,143,677.20, 58,715,515.80 and 39,143,677.20 is: 58,715,515.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,143,677.20 : 58,715,515.80 = 39,143,677.20 : x
  2. Step 2: Convert to fraction form
    39,143,677.20/58,715,515.80 = 39,143,677.20/x
  3. Step 3: Cross multiply
    39,143,677.20x = 58,715,515.80 × 39,143,677.20
  4. Step 4: Simplify right side
    39,143,677.20x = 2,298,341,197,106,700
  5. Step 5: Solve for x
    x = 2,298,341,197,106,700/39,143,677.20
  6. Step 6: Final answer
    x = 58,715,515.80

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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.