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Finding the Fourth Proportional to 137,869.40, 193,279.60 and 137,869.40

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Solution

The fourth proportional to 137,869.40, 193,279.60 and 137,869.40 is: 193,279.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,869.40 : 193,279.60 = 137,869.40 : x
  2. Step 2: Convert to fraction form
    137,869.40/193,279.60 = 137,869.40/x
  3. Step 3: Cross multiply
    137,869.40x = 193,279.60 × 137,869.40
  4. Step 4: Simplify right side
    137,869.40x = 26,647,342,484.24
  5. Step 5: Solve for x
    x = 26,647,342,484.24/137,869.40
  6. Step 6: Final answer
    x = 193,279.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.