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Finding the Fourth Proportional to 194,436.30, 291,481.65 and 127,908.30

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Solution

The fourth proportional to 194,436.30, 291,481.65 and 127,908.30 is: 191,748.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,436.30 : 291,481.65 = 127,908.30 : x
  2. Step 2: Convert to fraction form
    194,436.30/291,481.65 = 127,908.30/x
  3. Step 3: Cross multiply
    194,436.30x = 291,481.65 × 127,908.30
  4. Step 4: Simplify right side
    194,436.30x = 37,282,922,332.70
  5. Step 5: Solve for x
    x = 37,282,922,332.70/194,436.30
  6. Step 6: Final answer
    x = 191,748.77

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1.5x scale

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.