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Finding the Fourth Proportional to 117,766.52, 162,513.09 and 64,051.50

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Solution

The fourth proportional to 117,766.52, 162,513.09 and 64,051.50 is: 88,388.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,766.52 : 162,513.09 = 64,051.50 : x
  2. Step 2: Convert to fraction form
    117,766.52/162,513.09 = 64,051.50/x
  3. Step 3: Cross multiply
    117,766.52x = 162,513.09 × 64,051.50
  4. Step 4: Simplify right side
    117,766.52x = 10,409,207,184.14
  5. Step 5: Solve for x
    x = 10,409,207,184.14/117,766.52
  6. Step 6: Final answer
    x = 88,388.51

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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.