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Finding the Fourth Proportional to 92,947,588.80, 128,269,320.80 and 51,694,500.80

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Solution

The fourth proportional to 92,947,588.80, 128,269,320.80 and 51,694,500.80 is: 71,339,327.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,947,588.80 : 128,269,320.80 = 51,694,500.80 : x
  2. Step 2: Convert to fraction form
    92,947,588.80/128,269,320.80 = 51,694,500.80/x
  3. Step 3: Cross multiply
    92,947,588.80x = 128,269,320.80 × 51,694,500.80
  4. Step 4: Simplify right side
    92,947,588.80x = 6,630,818,506,711,056
  5. Step 5: Solve for x
    x = 6,630,818,506,711,056/92,947,588.80
  6. Step 6: Final answer
    x = 71,339,327.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.