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Finding the Fourth Proportional to 71,809.01, 107,808.92 and 61,346.26

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Solution

The fourth proportional to 71,809.01, 107,808.92 and 61,346.26 is: 92,100.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,809.01 : 107,808.92 = 61,346.26 : x
  2. Step 2: Convert to fraction form
    71,809.01/107,808.92 = 61,346.26/x
  3. Step 3: Cross multiply
    71,809.01x = 107,808.92 × 61,346.26
  4. Step 4: Simplify right side
    71,809.01x = 6,613,674,439.79
  5. Step 5: Solve for x
    x = 6,613,674,439.79/71,809.01
  6. Step 6: Final answer
    x = 92,100.91

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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.