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Finding the Fourth Proportional to 69,345.50, 104,035.53 and 20,097.50

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Solution

The fourth proportional to 69,345.50, 104,035.53 and 20,097.50 is: 30,151.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,345.50 : 104,035.53 = 20,097.50 : x
  2. Step 2: Convert to fraction form
    69,345.50/104,035.53 = 20,097.50/x
  3. Step 3: Cross multiply
    69,345.50x = 104,035.53 × 20,097.50
  4. Step 4: Simplify right side
    69,345.50x = 2,090,854,064.18
  5. Step 5: Solve for x
    x = 2,090,854,064.18/69,345.50
  6. Step 6: Final answer
    x = 30,151.26

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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.