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Finding the Fourth Proportional to 161,245.40, 241,802.49 and 72,475.07

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Solution

The fourth proportional to 161,245.40, 241,802.49 and 72,475.07 is: 108,683.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,245.40 : 241,802.49 = 72,475.07 : x
  2. Step 2: Convert to fraction form
    161,245.40/241,802.49 = 72,475.07/x
  3. Step 3: Cross multiply
    161,245.40x = 241,802.49 × 72,475.07
  4. Step 4: Simplify right side
    161,245.40x = 17,524,652,388.92
  5. Step 5: Solve for x
    x = 17,524,652,388.92/161,245.40
  6. Step 6: Final answer
    x = 108,683.12

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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.