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Finding the Fourth Proportional to 117,479.46, 162,117.32 and 63,763.32

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Solution

The fourth proportional to 117,479.46, 162,117.32 and 63,763.32 is: 87,991.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,479.46 : 162,117.32 = 63,763.32 : x
  2. Step 2: Convert to fraction form
    117,479.46/162,117.32 = 63,763.32/x
  3. Step 3: Cross multiply
    117,479.46x = 162,117.32 × 63,763.32
  4. Step 4: Simplify right side
    117,479.46x = 10,337,138,552.70
  5. Step 5: Solve for x
    x = 10,337,138,552.70/117,479.46
  6. Step 6: Final answer
    x = 87,991.03

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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.