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Finding the Fourth Proportional to 118,461.01, 163,471.75 and 64,745.59

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Solution

The fourth proportional to 118,461.01, 163,471.75 and 64,745.59 is: 89,346.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,461.01 : 163,471.75 = 64,745.59 : x
  2. Step 2: Convert to fraction form
    118,461.01/163,471.75 = 64,745.59/x
  3. Step 3: Cross multiply
    118,461.01x = 163,471.75 × 64,745.59
  4. Step 4: Simplify right side
    118,461.01x = 10,584,074,902.08
  5. Step 5: Solve for x
    x = 10,584,074,902.08/118,461.01
  6. Step 6: Final answer
    x = 89,346.49

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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.