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Finding the Fourth Proportional to 105,869.68, 146,102.48 and 60,551.80

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Solution

The fourth proportional to 105,869.68, 146,102.48 and 60,551.80 is: 83,562.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,869.68 : 146,102.48 = 60,551.80 : x
  2. Step 2: Convert to fraction form
    105,869.68/146,102.48 = 60,551.80/x
  3. Step 3: Cross multiply
    105,869.68x = 146,102.48 × 60,551.80
  4. Step 4: Simplify right side
    105,869.68x = 8,846,768,148.46
  5. Step 5: Solve for x
    x = 8,846,768,148.46/105,869.68
  6. Step 6: Final answer
    x = 83,562.81

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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.