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Finding the Fourth Proportional to 53,207,965.90, 79,811,948.85 and 53,207,965.90

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Solution

The fourth proportional to 53,207,965.90, 79,811,948.85 and 53,207,965.90 is: 79,811,948.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,207,965.90 : 79,811,948.85 = 53,207,965.90 : x
  2. Step 2: Convert to fraction form
    53,207,965.90/79,811,948.85 = 53,207,965.90/x
  3. Step 3: Cross multiply
    53,207,965.90x = 79,811,948.85 × 53,207,965.90
  4. Step 4: Simplify right side
    53,207,965.90x = 4,246,631,452,823,344
  5. Step 5: Solve for x
    x = 4,246,631,452,823,344/53,207,965.90
  6. Step 6: Final answer
    x = 79,811,948.85

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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.