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Finding the Fourth Proportional to 118,240.78, 163,175.90 and 67,260.90

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Solution

The fourth proportional to 118,240.78, 163,175.90 and 67,260.90 is: 92,822.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,240.78 : 163,175.90 = 67,260.90 : x
  2. Step 2: Convert to fraction form
    118,240.78/163,175.90 = 67,260.90/x
  3. Step 3: Cross multiply
    118,240.78x = 163,175.90 × 67,260.90
  4. Step 4: Simplify right side
    118,240.78x = 10,975,357,892.31
  5. Step 5: Solve for x
    x = 10,975,357,892.31/118,240.78
  6. Step 6: Final answer
    x = 92,822.10

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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.