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Finding the Fourth Proportional to 117,634.68, 162,335.51 and 63,919.86

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Solution

The fourth proportional to 117,634.68, 162,335.51 and 63,919.86 is: 88,209.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,634.68 : 162,335.51 = 63,919.86 : x
  2. Step 2: Convert to fraction form
    117,634.68/162,335.51 = 63,919.86/x
  3. Step 3: Cross multiply
    117,634.68x = 162,335.51 × 63,919.86
  4. Step 4: Simplify right side
    117,634.68x = 10,376,462,752.63
  5. Step 5: Solve for x
    x = 10,376,462,752.63/117,634.68
  6. Step 6: Final answer
    x = 88,209.21

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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.