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Finding the Fourth Proportional to 52,838,467.20, 79,131,729.60 and 52,838,467.20

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Solution

The fourth proportional to 52,838,467.20, 79,131,729.60 and 52,838,467.20 is: 79,131,729.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,838,467.20 : 79,131,729.60 = 52,838,467.20 : x
  2. Step 2: Convert to fraction form
    52,838,467.20/79,131,729.60 = 52,838,467.20/x
  3. Step 3: Cross multiply
    52,838,467.20x = 79,131,729.60 × 52,838,467.20
  4. Step 4: Simplify right side
    52,838,467.20x = 4,181,199,298,948,869
  5. Step 5: Solve for x
    x = 4,181,199,298,948,869/52,838,467.20
  6. Step 6: Final answer
    x = 79,131,729.60

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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.