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Finding the Fourth Proportional to 117,999.96, 162,839.30 and 64,284.86

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Solution

The fourth proportional to 117,999.96, 162,839.30 and 64,284.86 is: 88,712.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,999.96 : 162,839.30 = 64,284.86 : x
  2. Step 2: Convert to fraction form
    117,999.96/162,839.30 = 64,284.86/x
  3. Step 3: Cross multiply
    117,999.96x = 162,839.30 × 64,284.86
  4. Step 4: Simplify right side
    117,999.96x = 10,468,101,603.00
  5. Step 5: Solve for x
    x = 10,468,101,603.00/117,999.96
  6. Step 6: Final answer
    x = 88,712.76

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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.