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Finding the Fourth Proportional to 53,411.99, 73,659.77 and 45,855.91

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Solution

The fourth proportional to 53,411.99, 73,659.77 and 45,855.91 is: 63,239.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,411.99 : 73,659.77 = 45,855.91 : x
  2. Step 2: Convert to fraction form
    53,411.99/73,659.77 = 45,855.91/x
  3. Step 3: Cross multiply
    53,411.99x = 73,659.77 × 45,855.91
  4. Step 4: Simplify right side
    53,411.99x = 3,377,735,714.23
  5. Step 5: Solve for x
    x = 3,377,735,714.23/53,411.99
  6. Step 6: Final answer
    x = 63,239.28

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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.