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Finding the Fourth Proportional to 56,772,004.20, 79,682,359.80 and 56,772,004.20

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Solution

The fourth proportional to 56,772,004.20, 79,682,359.80 and 56,772,004.20 is: 79,682,359.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,772,004.20 : 79,682,359.80 = 56,772,004.20 : x
  2. Step 2: Convert to fraction form
    56,772,004.20/79,682,359.80 = 56,772,004.20/x
  3. Step 3: Cross multiply
    56,772,004.20x = 79,682,359.80 × 56,772,004.20
  4. Step 4: Simplify right side
    56,772,004.20x = 4,523,727,265,231,511
  5. Step 5: Solve for x
    x = 4,523,727,265,231,511/56,772,004.20
  6. Step 6: Final answer
    x = 79,682,359.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.