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Finding the Fourth Proportional to 70,441.86, 97,210.44 and 38,611.38

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Solution

The fourth proportional to 70,441.86, 97,210.44 and 38,611.38 is: 53,284.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,441.86 : 97,210.44 = 38,611.38 : x
  2. Step 2: Convert to fraction form
    70,441.86/97,210.44 = 38,611.38/x
  3. Step 3: Cross multiply
    70,441.86x = 97,210.44 × 38,611.38
  4. Step 4: Simplify right side
    70,441.86x = 3,753,429,238.81
  5. Step 5: Solve for x
    x = 3,753,429,238.81/70,441.86
  6. Step 6: Final answer
    x = 53,284.07

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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.