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Finding the Fourth Proportional to 61,153.85, 91,719.17 and 19,034.45

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Solution

The fourth proportional to 61,153.85, 91,719.17 and 19,034.45 is: 28,548.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,153.85 : 91,719.17 = 19,034.45 : x
  2. Step 2: Convert to fraction form
    61,153.85/91,719.17 = 19,034.45/x
  3. Step 3: Cross multiply
    61,153.85x = 91,719.17 × 19,034.45
  4. Step 4: Simplify right side
    61,153.85x = 1,745,824,232.29
  5. Step 5: Solve for x
    x = 1,745,824,232.29/61,153.85
  6. Step 6: Final answer
    x = 28,548.07

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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.