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Finding the Fourth Proportional to 118,487.00, 163,512.14 and 64,772.03

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Solution

The fourth proportional to 118,487.00, 163,512.14 and 64,772.03 is: 89,385.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,487.00 : 163,512.14 = 64,772.03 : x
  2. Step 2: Convert to fraction form
    118,487.00/163,512.14 = 64,772.03/x
  3. Step 3: Cross multiply
    118,487.00x = 163,512.14 × 64,772.03
  4. Step 4: Simplify right side
    118,487.00x = 10,591,012,096.02
  5. Step 5: Solve for x
    x = 10,591,012,096.02/118,487.00
  6. Step 6: Final answer
    x = 89,385.44

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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.