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Finding the Fourth Proportional to 118,046.84, 162,899.91 and 64,330.71

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Solution

The fourth proportional to 118,046.84, 162,899.91 and 64,330.71 is: 88,773.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,046.84 : 162,899.91 = 64,330.71 : x
  2. Step 2: Convert to fraction form
    118,046.84/162,899.91 = 64,330.71/x
  3. Step 3: Cross multiply
    118,046.84x = 162,899.91 × 64,330.71
  4. Step 4: Simplify right side
    118,046.84x = 10,479,466,869.24
  5. Step 5: Solve for x
    x = 10,479,466,869.24/118,046.84
  6. Step 6: Final answer
    x = 88,773.81

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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.