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Finding the Fourth Proportional to 70,221.14, 105,310.29 and 36,923.14

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Solution

The fourth proportional to 70,221.14, 105,310.29 and 36,923.14 is: 55,373.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,221.14 : 105,310.29 = 36,923.14 : x
  2. Step 2: Convert to fraction form
    70,221.14/105,310.29 = 36,923.14/x
  3. Step 3: Cross multiply
    70,221.14x = 105,310.29 × 36,923.14
  4. Step 4: Simplify right side
    70,221.14x = 3,888,386,581.11
  5. Step 5: Solve for x
    x = 3,888,386,581.11/70,221.14
  6. Step 6: Final answer
    x = 55,373.45

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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.