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Finding the Fourth Proportional to 251,015.13, 375,581.61 and 149,441.67

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Solution

The fourth proportional to 251,015.13, 375,581.61 and 149,441.67 is: 223,602.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,015.13 : 375,581.61 = 149,441.67 : x
  2. Step 2: Convert to fraction form
    251,015.13/375,581.61 = 149,441.67/x
  3. Step 3: Cross multiply
    251,015.13x = 375,581.61 × 149,441.67
  4. Step 4: Simplify right side
    251,015.13x = 56,127,543,019.69
  5. Step 5: Solve for x
    x = 56,127,543,019.69/251,015.13
  6. Step 6: Final answer
    x = 223,602.23

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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.