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Finding the Fourth Proportional to 61,146.45, 91,719.14 and 19,593.45

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Solution

The fourth proportional to 61,146.45, 91,719.14 and 19,593.45 is: 29,390.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,146.45 : 91,719.14 = 19,593.45 : x
  2. Step 2: Convert to fraction form
    61,146.45/91,719.14 = 19,593.45/x
  3. Step 3: Cross multiply
    61,146.45x = 91,719.14 × 19,593.45
  4. Step 4: Simplify right side
    61,146.45x = 1,797,094,285.67
  5. Step 5: Solve for x
    x = 1,797,094,285.67/61,146.45
  6. Step 6: Final answer
    x = 29,390.00

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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.