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Finding the Fourth Proportional to 75,296.75, 112,955.51 and 25,391.09

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Solution

The fourth proportional to 75,296.75, 112,955.51 and 25,391.09 is: 38,090.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,296.75 : 112,955.51 = 25,391.09 : x
  2. Step 2: Convert to fraction form
    75,296.75/112,955.51 = 25,391.09/x
  3. Step 3: Cross multiply
    75,296.75x = 112,955.51 × 25,391.09
  4. Step 4: Simplify right side
    75,296.75x = 2,868,062,828.67
  5. Step 5: Solve for x
    x = 2,868,062,828.67/75,296.75
  6. Step 6: Final answer
    x = 38,090.13

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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.