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Finding the Fourth Proportional to 118,146.50, 163,051.84 and 67,175.22

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Solution

The fourth proportional to 118,146.50, 163,051.84 and 67,175.22 is: 92,707.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,146.50 : 163,051.84 = 67,175.22 : x
  2. Step 2: Convert to fraction form
    118,146.50/163,051.84 = 67,175.22/x
  3. Step 3: Cross multiply
    118,146.50x = 163,051.84 × 67,175.22
  4. Step 4: Simplify right side
    118,146.50x = 10,953,043,223.40
  5. Step 5: Solve for x
    x = 10,953,043,223.40/118,146.50
  6. Step 6: Final answer
    x = 92,707.30

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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.