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Finding the Fourth Proportional to 243,826, 336,486.63 and 136,414.60

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Solution

The fourth proportional to 243,826, 336,486.63 and 136,414.60 is: 188,255.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,826 : 336,486.63 = 136,414.60 : x
  2. Step 2: Convert to fraction form
    243,826/336,486.63 = 136,414.60/x
  3. Step 3: Cross multiply
    243,826x = 336,486.63 × 136,414.60
  4. Step 4: Simplify right side
    243,826x = 45,901,689,036.80
  5. Step 5: Solve for x
    x = 45,901,689,036.80/243,826
  6. Step 6: Final answer
    x = 188,255.92

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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.