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Finding the Fourth Proportional to 53,873,125.80, 80,809,688.70 and 53,022,820.20

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Solution

The fourth proportional to 53,873,125.80, 80,809,688.70 and 53,022,820.20 is: 79,534,230.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,873,125.80 : 80,809,688.70 = 53,022,820.20 : x
  2. Step 2: Convert to fraction form
    53,873,125.80/80,809,688.70 = 53,022,820.20/x
  3. Step 3: Cross multiply
    53,873,125.80x = 80,809,688.70 × 53,022,820.20
  4. Step 4: Simplify right side
    53,873,125.80x = 4,284,757,594,358,072
  5. Step 5: Solve for x
    x = 4,284,757,594,358,072/53,873,125.80
  6. Step 6: Final answer
    x = 79,534,230.30

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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.