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Finding the Fourth Proportional to 137,937.60, 206,906.40 and 59,059.80

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Solution

The fourth proportional to 137,937.60, 206,906.40 and 59,059.80 is: 88,589.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,937.60 : 206,906.40 = 59,059.80 : x
  2. Step 2: Convert to fraction form
    137,937.60/206,906.40 = 59,059.80/x
  3. Step 3: Cross multiply
    137,937.60x = 206,906.40 × 59,059.80
  4. Step 4: Simplify right side
    137,937.60x = 12,219,850,602.72
  5. Step 5: Solve for x
    x = 12,219,850,602.72/137,937.60
  6. Step 6: Final answer
    x = 88,589.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.