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Finding the Fourth Proportional to 118,465.10, 163,481.80 and 67,482.56

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Solution

The fourth proportional to 118,465.10, 163,481.80 and 67,482.56 is: 93,125.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,465.10 : 163,481.80 = 67,482.56 : x
  2. Step 2: Convert to fraction form
    118,465.10/163,481.80 = 67,482.56/x
  3. Step 3: Cross multiply
    118,465.10x = 163,481.80 × 67,482.56
  4. Step 4: Simplify right side
    118,465.10x = 11,032,170,377.41
  5. Step 5: Solve for x
    x = 11,032,170,377.41/118,465.10
  6. Step 6: Final answer
    x = 93,125.91

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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.