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Finding the Fourth Proportional to 105,357.64, 145,393.68 and 60,033.64

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Solution

The fourth proportional to 105,357.64, 145,393.68 and 60,033.64 is: 82,846.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,357.64 : 145,393.68 = 60,033.64 : x
  2. Step 2: Convert to fraction form
    105,357.64/145,393.68 = 60,033.64/x
  3. Step 3: Cross multiply
    105,357.64x = 145,393.68 × 60,033.64
  4. Step 4: Simplify right side
    105,357.64x = 8,728,511,843.40
  5. Step 5: Solve for x
    x = 8,728,511,843.40/105,357.64
  6. Step 6: Final answer
    x = 82,846.50

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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.