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Finding the Fourth Proportional to 194,682.25, 268,661.52 and 105,258.25

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Solution

The fourth proportional to 194,682.25, 268,661.52 and 105,258.25 is: 145,256.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,682.25 : 268,661.52 = 105,258.25 : x
  2. Step 2: Convert to fraction form
    194,682.25/268,661.52 = 105,258.25/x
  3. Step 3: Cross multiply
    194,682.25x = 268,661.52 × 105,258.25
  4. Step 4: Simplify right side
    194,682.25x = 28,278,841,437.54
  5. Step 5: Solve for x
    x = 28,278,841,437.54/194,682.25
  6. Step 6: Final answer
    x = 145,256.39

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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.