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Finding the Fourth Proportional to 75,010.79, 112,515.95 and 25,079.46

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Solution

The fourth proportional to 75,010.79, 112,515.95 and 25,079.46 is: 37,619.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,010.79 : 112,515.95 = 25,079.46 : x
  2. Step 2: Convert to fraction form
    75,010.79/112,515.95 = 25,079.46/x
  3. Step 3: Cross multiply
    75,010.79x = 112,515.95 × 25,079.46
  4. Step 4: Simplify right side
    75,010.79x = 2,821,838,908.15
  5. Step 5: Solve for x
    x = 2,821,838,908.15/75,010.79
  6. Step 6: Final answer
    x = 37,619.11

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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.