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Finding the Fourth Proportional to 113,663.54, 170,544.48 and 61,011.56

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Solution

The fourth proportional to 113,663.54, 170,544.48 and 61,011.56 is: 91,543.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,663.54 : 170,544.48 = 61,011.56 : x
  2. Step 2: Convert to fraction form
    113,663.54/170,544.48 = 61,011.56/x
  3. Step 3: Cross multiply
    113,663.54x = 170,544.48 × 61,011.56
  4. Step 4: Simplify right side
    113,663.54x = 10,405,184,774.19
  5. Step 5: Solve for x
    x = 10,405,184,774.19/113,663.54
  6. Step 6: Final answer
    x = 91,543.73

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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.