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Finding the Fourth Proportional to 117,967.28, 162,795.90 and 64,252.54

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Solution

The fourth proportional to 117,967.28, 162,795.90 and 64,252.54 is: 88,669.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,967.28 : 162,795.90 = 64,252.54 : x
  2. Step 2: Convert to fraction form
    117,967.28/162,795.90 = 64,252.54/x
  3. Step 3: Cross multiply
    117,967.28x = 162,795.90 × 64,252.54
  4. Step 4: Simplify right side
    117,967.28x = 10,460,050,076.59
  5. Step 5: Solve for x
    x = 10,460,050,076.59/117,967.28
  6. Step 6: Final answer
    x = 88,669.08

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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.