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Finding the Fourth Proportional to 118,348.59, 163,299.42 and 67,358.31

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Solution

The fourth proportional to 118,348.59, 163,299.42 and 67,358.31 is: 92,942.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,348.59 : 163,299.42 = 67,358.31 : x
  2. Step 2: Convert to fraction form
    118,348.59/163,299.42 = 67,358.31/x
  3. Step 3: Cross multiply
    118,348.59x = 163,299.42 × 67,358.31
  4. Step 4: Simplify right side
    118,348.59x = 10,999,572,612.64
  5. Step 5: Solve for x
    x = 10,999,572,612.64/118,348.59
  6. Step 6: Final answer
    x = 92,942.15

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1.5x scale

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.