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Finding the Fourth Proportional to 117,761.58, 162,509.61 and 64,045.41

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Solution

The fourth proportional to 117,761.58, 162,509.61 and 64,045.41 is: 88,381.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,761.58 : 162,509.61 = 64,045.41 : x
  2. Step 2: Convert to fraction form
    117,761.58/162,509.61 = 64,045.41/x
  3. Step 3: Cross multiply
    117,761.58x = 162,509.61 × 64,045.41
  4. Step 4: Simplify right side
    117,761.58x = 10,407,994,601.39
  5. Step 5: Solve for x
    x = 10,407,994,601.39/117,761.58
  6. Step 6: Final answer
    x = 88,381.92

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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.