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Finding the Fourth Proportional to 119,374.46, 164,736.84 and 65,663.56

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Solution

The fourth proportional to 119,374.46, 164,736.84 and 65,663.56 is: 90,615.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,374.46 : 164,736.84 = 65,663.56 : x
  2. Step 2: Convert to fraction form
    119,374.46/164,736.84 = 65,663.56/x
  3. Step 3: Cross multiply
    119,374.46x = 164,736.84 × 65,663.56
  4. Step 4: Simplify right side
    119,374.46x = 10,817,207,460.35
  5. Step 5: Solve for x
    x = 10,817,207,460.35/119,374.46
  6. Step 6: Final answer
    x = 90,615.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.