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Finding the Fourth Proportional to 61,604,310.80, 85,014,578.80 and 34,101,648.56

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Solution

The fourth proportional to 61,604,310.80, 85,014,578.80 and 34,101,648.56 is: 47,060,623.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,604,310.80 : 85,014,578.80 = 34,101,648.56 : x
  2. Step 2: Convert to fraction form
    61,604,310.80/85,014,578.80 = 34,101,648.56/x
  3. Step 3: Cross multiply
    61,604,310.80x = 85,014,578.80 × 34,101,648.56
  4. Step 4: Simplify right side
    61,604,310.80x = 2,899,137,288,714,026.50
  5. Step 5: Solve for x
    x = 2,899,137,288,714,026.50/61,604,310.80
  6. Step 6: Final answer
    x = 47,060,623.70

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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.