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Finding the Fourth Proportional to 196,406.40, 294,307.20 and 146,251.20

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Solution

The fourth proportional to 196,406.40, 294,307.20 and 146,251.20 is: 219,151.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,406.40 : 294,307.20 = 146,251.20 : x
  2. Step 2: Convert to fraction form
    196,406.40/294,307.20 = 146,251.20/x
  3. Step 3: Cross multiply
    196,406.40x = 294,307.20 × 146,251.20
  4. Step 4: Simplify right side
    196,406.40x = 43,042,781,168.64
  5. Step 5: Solve for x
    x = 43,042,781,168.64/196,406.40
  6. Step 6: Final answer
    x = 219,151.62

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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.