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Finding the Fourth Proportional to 118,153.82, 163,045.77 and 67,159.46

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Solution

The fourth proportional to 118,153.82, 163,045.77 and 67,159.46 is: 92,676.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,153.82 : 163,045.77 = 67,159.46 : x
  2. Step 2: Convert to fraction form
    118,153.82/163,045.77 = 67,159.46/x
  3. Step 3: Cross multiply
    118,153.82x = 163,045.77 × 67,159.46
  4. Step 4: Simplify right side
    118,153.82x = 10,950,065,868.48
  5. Step 5: Solve for x
    x = 10,950,065,868.48/118,153.82
  6. Step 6: Final answer
    x = 92,676.36

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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.