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Finding the Fourth Proportional to 194,848.80, 291,754.80 and 124,346.40

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Solution

The fourth proportional to 194,848.80, 291,754.80 and 124,346.40 is: 186,188.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,848.80 : 291,754.80 = 124,346.40 : x
  2. Step 2: Convert to fraction form
    194,848.80/291,754.80 = 124,346.40/x
  3. Step 3: Cross multiply
    194,848.80x = 291,754.80 × 124,346.40
  4. Step 4: Simplify right side
    194,848.80x = 36,278,659,062.72
  5. Step 5: Solve for x
    x = 36,278,659,062.72/194,848.80
  6. Step 6: Final answer
    x = 186,188.77

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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.