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Finding the Fourth Proportional to 189,393.14, 261,377.28 and 108,848.76

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Solution

The fourth proportional to 189,393.14, 261,377.28 and 108,848.76 is: 150,219.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,393.14 : 261,377.28 = 108,848.76 : x
  2. Step 2: Convert to fraction form
    189,393.14/261,377.28 = 108,848.76/x
  3. Step 3: Cross multiply
    189,393.14x = 261,377.28 × 108,848.76
  4. Step 4: Simplify right side
    189,393.14x = 28,450,592,820.17
  5. Step 5: Solve for x
    x = 28,450,592,820.17/189,393.14
  6. Step 6: Final answer
    x = 150,219.77

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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.