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Finding the Fourth Proportional to 118,447.26, 163,457.64 and 64,732.26

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Solution

The fourth proportional to 118,447.26, 163,457.64 and 64,732.26 is: 89,330.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,447.26 : 163,457.64 = 64,732.26 : x
  2. Step 2: Convert to fraction form
    118,447.26/163,457.64 = 64,732.26/x
  3. Step 3: Cross multiply
    118,447.26x = 163,457.64 × 64,732.26
  4. Step 4: Simplify right side
    118,447.26x = 10,580,982,451.47
  5. Step 5: Solve for x
    x = 10,580,982,451.47/118,447.26
  6. Step 6: Final answer
    x = 89,330.75

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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.