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Finding the Fourth Proportional to 121,749.59, 182,665.89 and 65,595.47

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Solution

The fourth proportional to 121,749.59, 182,665.89 and 65,595.47 is: 98,415.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,749.59 : 182,665.89 = 65,595.47 : x
  2. Step 2: Convert to fraction form
    121,749.59/182,665.89 = 65,595.47/x
  3. Step 3: Cross multiply
    121,749.59x = 182,665.89 × 65,595.47
  4. Step 4: Simplify right side
    121,749.59x = 11,982,053,994.19
  5. Step 5: Solve for x
    x = 11,982,053,994.19/121,749.59
  6. Step 6: Final answer
    x = 98,415.56

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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.