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Finding the Fourth Proportional to 105,652.55, 158,619.60 and 61,311.13

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Solution

The fourth proportional to 105,652.55, 158,619.60 and 61,311.13 is: 92,048.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,652.55 : 158,619.60 = 61,311.13 : x
  2. Step 2: Convert to fraction form
    105,652.55/158,619.60 = 61,311.13/x
  3. Step 3: Cross multiply
    105,652.55x = 158,619.60 × 61,311.13
  4. Step 4: Simplify right side
    105,652.55x = 9,725,146,519.60
  5. Step 5: Solve for x
    x = 9,725,146,519.60/105,652.55
  6. Step 6: Final answer
    x = 92,048.38

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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.