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Finding the Fourth Proportional to 132,856.74, 183,335.76 and 75,488.58

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Solution

The fourth proportional to 132,856.74, 183,335.76 and 75,488.58 is: 104,170.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,856.74 : 183,335.76 = 75,488.58 : x
  2. Step 2: Convert to fraction form
    132,856.74/183,335.76 = 75,488.58/x
  3. Step 3: Cross multiply
    132,856.74x = 183,335.76 × 75,488.58
  4. Step 4: Simplify right side
    132,856.74x = 13,839,756,185.62
  5. Step 5: Solve for x
    x = 13,839,756,185.62/132,856.74
  6. Step 6: Final answer
    x = 104,170.52

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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.