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Finding the Fourth Proportional to 118,150.77, 163,043.14 and 64,434.81

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Solution

The fourth proportional to 118,150.77, 163,043.14 and 64,434.81 is: 88,917.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,150.77 : 163,043.14 = 64,434.81 : x
  2. Step 2: Convert to fraction form
    118,150.77/163,043.14 = 64,434.81/x
  3. Step 3: Cross multiply
    118,150.77x = 163,043.14 × 64,434.81
  4. Step 4: Simplify right side
    118,150.77x = 10,505,653,747.70
  5. Step 5: Solve for x
    x = 10,505,653,747.70/118,150.77
  6. Step 6: Final answer
    x = 88,917.35

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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.