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Finding the Fourth Proportional to 118,174.55, 163,083.10 and 64,461.49

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Solution

The fourth proportional to 118,174.55, 163,083.10 and 64,461.49 is: 88,958.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,174.55 : 163,083.10 = 64,461.49 : x
  2. Step 2: Convert to fraction form
    118,174.55/163,083.10 = 64,461.49/x
  3. Step 3: Cross multiply
    118,174.55x = 163,083.10 × 64,461.49
  4. Step 4: Simplify right side
    118,174.55x = 10,512,579,050.96
  5. Step 5: Solve for x
    x = 10,512,579,050.96/118,174.55
  6. Step 6: Final answer
    x = 88,958.06

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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.