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Finding the Fourth Proportional to 196,838.62, 294,814.02 and 91,435.78

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Solution

The fourth proportional to 196,838.62, 294,814.02 and 91,435.78 is: 136,947.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,838.62 : 294,814.02 = 91,435.78 : x
  2. Step 2: Convert to fraction form
    196,838.62/294,814.02 = 91,435.78/x
  3. Step 3: Cross multiply
    196,838.62x = 294,814.02 × 91,435.78
  4. Step 4: Simplify right side
    196,838.62x = 26,956,549,873.64
  5. Step 5: Solve for x
    x = 26,956,549,873.64/196,838.62
  6. Step 6: Final answer
    x = 136,947.46

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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.