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Finding the Fourth Proportional to 117,957.50, 162,778.92 and 64,243.46

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Solution

The fourth proportional to 117,957.50, 162,778.92 and 64,243.46 is: 88,654.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,957.50 : 162,778.92 = 64,243.46 : x
  2. Step 2: Convert to fraction form
    117,957.50/162,778.92 = 64,243.46/x
  3. Step 3: Cross multiply
    117,957.50x = 162,778.92 × 64,243.46
  4. Step 4: Simplify right side
    117,957.50x = 10,457,481,035.86
  5. Step 5: Solve for x
    x = 10,457,481,035.86/117,957.50
  6. Step 6: Final answer
    x = 88,654.65

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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.