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Finding the Fourth Proportional to 117,997.86, 162,836.76 and 64,283.32

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Solution

The fourth proportional to 117,997.86, 162,836.76 and 64,283.32 is: 88,710.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,997.86 : 162,836.76 = 64,283.32 : x
  2. Step 2: Convert to fraction form
    117,997.86/162,836.76 = 64,283.32/x
  3. Step 3: Cross multiply
    117,997.86x = 162,836.76 × 64,283.32
  4. Step 4: Simplify right side
    117,997.86x = 10,467,687,550.84
  5. Step 5: Solve for x
    x = 10,467,687,550.84/117,997.86
  6. Step 6: Final answer
    x = 88,710.83

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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.