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Finding the Fourth Proportional to 67,029,689.60, 100,594,300.80 and 26,669,139.20

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Solution

The fourth proportional to 67,029,689.60, 100,594,300.80 and 26,669,139.20 is: 40,023,509.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,029,689.60 : 100,594,300.80 = 26,669,139.20 : x
  2. Step 2: Convert to fraction form
    67,029,689.60/100,594,300.80 = 26,669,139.20/x
  3. Step 3: Cross multiply
    67,029,689.60x = 100,594,300.80 × 26,669,139.20
  4. Step 4: Simplify right side
    67,029,689.60x = 2,682,763,410,761,871
  5. Step 5: Solve for x
    x = 2,682,763,410,761,871/67,029,689.60
  6. Step 6: Final answer
    x = 40,023,509.38

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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.