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Finding the Fourth Proportional to 79,490,983.60, 119,236,475.40 and 73,751,420.80

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Solution

The fourth proportional to 79,490,983.60, 119,236,475.40 and 73,751,420.80 is: 110,627,131.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,490,983.60 : 119,236,475.40 = 73,751,420.80 : x
  2. Step 2: Convert to fraction form
    79,490,983.60/119,236,475.40 = 73,751,420.80/x
  3. Step 3: Cross multiply
    79,490,983.60x = 119,236,475.40 × 73,751,420.80
  4. Step 4: Simplify right side
    79,490,983.60x = 8,793,859,471,934,248
  5. Step 5: Solve for x
    x = 8,793,859,471,934,248/79,490,983.60
  6. Step 6: Final answer
    x = 110,627,131.20

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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.