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Finding the Fourth Proportional to 117,684.60, 162,406.32 and 63,970.44

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Solution

The fourth proportional to 117,684.60, 162,406.32 and 63,970.44 is: 88,280.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,684.60 : 162,406.32 = 63,970.44 : x
  2. Step 2: Convert to fraction form
    117,684.60/162,406.32 = 63,970.44/x
  3. Step 3: Cross multiply
    117,684.60x = 162,406.32 × 63,970.44
  4. Step 4: Simplify right side
    117,684.60x = 10,389,203,749.18
  5. Step 5: Solve for x
    x = 10,389,203,749.18/117,684.60
  6. Step 6: Final answer
    x = 88,280.06

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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.