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Finding the Fourth Proportional to 75,225.88, 103,808.08 and 45,027.87

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Solution

The fourth proportional to 75,225.88, 103,808.08 and 45,027.87 is: 62,136.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,225.88 : 103,808.08 = 45,027.87 : x
  2. Step 2: Convert to fraction form
    75,225.88/103,808.08 = 45,027.87/x
  3. Step 3: Cross multiply
    75,225.88x = 103,808.08 × 45,027.87
  4. Step 4: Simplify right side
    75,225.88x = 4,674,256,731.19
  5. Step 5: Solve for x
    x = 4,674,256,731.19/75,225.88
  6. Step 6: Final answer
    x = 62,136.29

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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.