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Finding the Fourth Proportional to 105,969.60, 146,240.46 and 58,219.92

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Solution

The fourth proportional to 105,969.60, 146,240.46 and 58,219.92 is: 80,344.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,969.60 : 146,240.46 = 58,219.92 : x
  2. Step 2: Convert to fraction form
    105,969.60/146,240.46 = 58,219.92/x
  3. Step 3: Cross multiply
    105,969.60x = 146,240.46 × 58,219.92
  4. Step 4: Simplify right side
    105,969.60x = 8,514,107,881.96
  5. Step 5: Solve for x
    x = 8,514,107,881.96/105,969.60
  6. Step 6: Final answer
    x = 80,344.81

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1.5x scale

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.