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Finding the Fourth Proportional to 75,272.58, 112,251.06 and 65,955.96

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Solution

The fourth proportional to 75,272.58, 112,251.06 and 65,955.96 is: 98,357.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,272.58 : 112,251.06 = 65,955.96 : x
  2. Step 2: Convert to fraction form
    75,272.58/112,251.06 = 65,955.96/x
  3. Step 3: Cross multiply
    75,272.58x = 112,251.06 × 65,955.96
  4. Step 4: Simplify right side
    75,272.58x = 7,403,626,423.32
  5. Step 5: Solve for x
    x = 7,403,626,423.32/75,272.58
  6. Step 6: Final answer
    x = 98,357.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.