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Finding the Fourth Proportional to 64,950,751.66, 89,632,029.69 and 38,845,265.44

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Solution

The fourth proportional to 64,950,751.66, 89,632,029.69 and 38,845,265.44 is: 53,606,461.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,950,751.66 : 89,632,029.69 = 38,845,265.44 : x
  2. Step 2: Convert to fraction form
    64,950,751.66/89,632,029.69 = 38,845,265.44/x
  3. Step 3: Cross multiply
    64,950,751.66x = 89,632,029.69 × 38,845,265.44
  4. Step 4: Simplify right side
    64,950,751.66x = 3,481,779,985,234,010.50
  5. Step 5: Solve for x
    x = 3,481,779,985,234,010.50/64,950,751.66
  6. Step 6: Final answer
    x = 53,606,461.76

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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.