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Finding the Fourth Proportional to 75,312.52, 103,933.20 and 41,322.46

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Solution

The fourth proportional to 75,312.52, 103,933.20 and 41,322.46 is: 57,026.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,312.52 : 103,933.20 = 41,322.46 : x
  2. Step 2: Convert to fraction form
    75,312.52/103,933.20 = 41,322.46/x
  3. Step 3: Cross multiply
    75,312.52x = 103,933.20 × 41,322.46
  4. Step 4: Simplify right side
    75,312.52x = 4,294,775,499.67
  5. Step 5: Solve for x
    x = 4,294,775,499.67/75,312.52
  6. Step 6: Final answer
    x = 57,026.05

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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.