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Finding the Fourth Proportional to 69,173.24, 103,749.53 and 19,248.12

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Solution

The fourth proportional to 69,173.24, 103,749.53 and 19,248.12 is: 28,869.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,173.24 : 103,749.53 = 19,248.12 : x
  2. Step 2: Convert to fraction form
    69,173.24/103,749.53 = 19,248.12/x
  3. Step 3: Cross multiply
    69,173.24x = 103,749.53 × 19,248.12
  4. Step 4: Simplify right side
    69,173.24x = 1,996,983,307.14
  5. Step 5: Solve for x
    x = 1,996,983,307.14/69,173.24
  6. Step 6: Final answer
    x = 28,869.31

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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.