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Finding the Fourth Proportional to 118,175.51, 163,082.70 and 64,461.68

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Solution

The fourth proportional to 118,175.51, 163,082.70 and 64,461.68 is: 88,957.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,175.51 : 163,082.70 = 64,461.68 : x
  2. Step 2: Convert to fraction form
    118,175.51/163,082.70 = 64,461.68/x
  3. Step 3: Cross multiply
    118,175.51x = 163,082.70 × 64,461.68
  4. Step 4: Simplify right side
    118,175.51x = 10,512,584,005.52
  5. Step 5: Solve for x
    x = 10,512,584,005.52/118,175.51
  6. Step 6: Final answer
    x = 88,957.39

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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.