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Finding the Fourth Proportional to 196,368.90, 294,553.35 and 71,693.70

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Solution

The fourth proportional to 196,368.90, 294,553.35 and 71,693.70 is: 107,540.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,368.90 : 294,553.35 = 71,693.70 : x
  2. Step 2: Convert to fraction form
    196,368.90/294,553.35 = 71,693.70/x
  3. Step 3: Cross multiply
    196,368.90x = 294,553.35 × 71,693.70
  4. Step 4: Simplify right side
    196,368.90x = 21,117,619,508.90
  5. Step 5: Solve for x
    x = 21,117,619,508.90/196,368.90
  6. Step 6: Final answer
    x = 107,540.55

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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.