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Finding the Fourth Proportional to 118,602.59, 163,671.46 and 64,887.64

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Solution

The fourth proportional to 118,602.59, 163,671.46 and 64,887.64 is: 89,544.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,602.59 : 163,671.46 = 64,887.64 : x
  2. Step 2: Convert to fraction form
    118,602.59/163,671.46 = 64,887.64/x
  3. Step 3: Cross multiply
    118,602.59x = 163,671.46 × 64,887.64
  4. Step 4: Simplify right side
    118,602.59x = 10,620,254,203.36
  5. Step 5: Solve for x
    x = 10,620,254,203.36/118,602.59
  6. Step 6: Final answer
    x = 89,544.88

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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.