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Finding the Fourth Proportional to 118,043.54, 162,895.34 and 64,327.41

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Solution

The fourth proportional to 118,043.54, 162,895.34 and 64,327.41 is: 88,769.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,043.54 : 162,895.34 = 64,327.41 : x
  2. Step 2: Convert to fraction form
    118,043.54/162,895.34 = 64,327.41/x
  3. Step 3: Cross multiply
    118,043.54x = 162,895.34 × 64,327.41
  4. Step 4: Simplify right side
    118,043.54x = 10,478,634,187.16
  5. Step 5: Solve for x
    x = 10,478,634,187.16/118,043.54
  6. Step 6: Final answer
    x = 88,769.23

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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.