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Finding the Fourth Proportional to 119,561.46, 164,989.05 and 65,848.74

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Solution

The fourth proportional to 119,561.46, 164,989.05 and 65,848.74 is: 90,868.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,561.46 : 164,989.05 = 65,848.74 : x
  2. Step 2: Convert to fraction form
    119,561.46/164,989.05 = 65,848.74/x
  3. Step 3: Cross multiply
    119,561.46x = 164,989.05 × 65,848.74
  4. Step 4: Simplify right side
    119,561.46x = 10,864,321,056.30
  5. Step 5: Solve for x
    x = 10,864,321,056.30/119,561.46
  6. Step 6: Final answer
    x = 90,868.09

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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.