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Finding the Fourth Proportional to 75,263.52, 112,910.40 and 53,084.64

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Solution

The fourth proportional to 75,263.52, 112,910.40 and 53,084.64 is: 79,637.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,263.52 : 112,910.40 = 53,084.64 : x
  2. Step 2: Convert to fraction form
    75,263.52/112,910.40 = 53,084.64/x
  3. Step 3: Cross multiply
    75,263.52x = 112,910.40 × 53,084.64
  4. Step 4: Simplify right side
    75,263.52x = 5,993,807,936.26
  5. Step 5: Solve for x
    x = 5,993,807,936.26/75,263.52
  6. Step 6: Final answer
    x = 79,637.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.