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Finding the Fourth Proportional to 70,722.45, 105,926.94 and 41,066.73

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Solution

The fourth proportional to 70,722.45, 105,926.94 and 41,066.73 is: 61,509.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,722.45 : 105,926.94 = 41,066.73 : x
  2. Step 2: Convert to fraction form
    70,722.45/105,926.94 = 41,066.73/x
  3. Step 3: Cross multiply
    70,722.45x = 105,926.94 × 41,066.73
  4. Step 4: Simplify right side
    70,722.45x = 4,350,073,044.71
  5. Step 5: Solve for x
    x = 4,350,073,044.71/70,722.45
  6. Step 6: Final answer
    x = 61,509.08

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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.