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Finding the Fourth Proportional to 194,434.80, 291,479.40 and 127,906.80

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Solution

The fourth proportional to 194,434.80, 291,479.40 and 127,906.80 is: 191,746.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,434.80 : 291,479.40 = 127,906.80 : x
  2. Step 2: Convert to fraction form
    194,434.80/291,479.40 = 127,906.80/x
  3. Step 3: Cross multiply
    194,434.80x = 291,479.40 × 127,906.80
  4. Step 4: Simplify right side
    194,434.80x = 37,282,197,319.92
  5. Step 5: Solve for x
    x = 37,282,197,319.92/194,434.80
  6. Step 6: Final answer
    x = 191,746.53

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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.