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Finding the Fourth Proportional to 117,637.99, 162,335.95 and 63,921.83

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Solution

The fourth proportional to 117,637.99, 162,335.95 and 63,921.83 is: 88,209.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,637.99 : 162,335.95 = 63,921.83 : x
  2. Step 2: Convert to fraction form
    117,637.99/162,335.95 = 63,921.83/x
  3. Step 3: Cross multiply
    117,637.99x = 162,335.95 × 63,921.83
  4. Step 4: Simplify right side
    117,637.99x = 10,376,810,027.30
  5. Step 5: Solve for x
    x = 10,376,810,027.30/117,637.99
  6. Step 6: Final answer
    x = 88,209.69

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1.5x scale

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.