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Finding the Fourth Proportional to 105,366.60, 145,419.84 and 60,060.96

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Solution

The fourth proportional to 105,366.60, 145,419.84 and 60,060.96 is: 82,892.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,366.60 : 145,419.84 = 60,060.96 : x
  2. Step 2: Convert to fraction form
    105,366.60/145,419.84 = 60,060.96/x
  3. Step 3: Cross multiply
    105,366.60x = 145,419.84 × 60,060.96
  4. Step 4: Simplify right side
    105,366.60x = 8,734,055,193.45
  5. Step 5: Solve for x
    x = 8,734,055,193.45/105,366.60
  6. Step 6: Final answer
    x = 82,892.07

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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.