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Finding the Fourth Proportional to 118,151.77, 163,044.52 and 64,435.81

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Solution

The fourth proportional to 118,151.77, 163,044.52 and 64,435.81 is: 88,918.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,151.77 : 163,044.52 = 64,435.81 : x
  2. Step 2: Convert to fraction form
    118,151.77/163,044.52 = 64,435.81/x
  3. Step 3: Cross multiply
    118,151.77x = 163,044.52 × 64,435.81
  4. Step 4: Simplify right side
    118,151.77x = 10,505,905,712.26
  5. Step 5: Solve for x
    x = 10,505,905,712.26/118,151.77
  6. Step 6: Final answer
    x = 88,918.73

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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.