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Finding the Fourth Proportional to 196,290.79, 270,881.34 and 106,866.79

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Solution

The fourth proportional to 196,290.79, 270,881.34 and 106,866.79 is: 147,476.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,290.79 : 270,881.34 = 106,866.79 : x
  2. Step 2: Convert to fraction form
    196,290.79/270,881.34 = 106,866.79/x
  3. Step 3: Cross multiply
    196,290.79x = 270,881.34 × 106,866.79
  4. Step 4: Simplify right side
    196,290.79x = 28,948,218,742.36
  5. Step 5: Solve for x
    x = 28,948,218,742.36/196,290.79
  6. Step 6: Final answer
    x = 147,476.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.