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Finding the Fourth Proportional to 104,062.53, 143,606.31 and 56,315.91

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Solution

The fourth proportional to 104,062.53, 143,606.31 and 56,315.91 is: 77,715.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,062.53 : 143,606.31 = 56,315.91 : x
  2. Step 2: Convert to fraction form
    104,062.53/143,606.31 = 56,315.91/x
  3. Step 3: Cross multiply
    104,062.53x = 143,606.31 × 56,315.91
  4. Step 4: Simplify right side
    104,062.53x = 8,087,320,029.39
  5. Step 5: Solve for x
    x = 8,087,320,029.39/104,062.53
  6. Step 6: Final answer
    x = 77,715.97

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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.