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Finding the Fourth Proportional to 132,235.60, 182,484.92 and 72,619.60

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Solution

The fourth proportional to 132,235.60, 182,484.92 and 72,619.60 is: 100,214.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,235.60 : 182,484.92 = 72,619.60 : x
  2. Step 2: Convert to fraction form
    132,235.60/182,484.92 = 72,619.60/x
  3. Step 3: Cross multiply
    132,235.60x = 182,484.92 × 72,619.60
  4. Step 4: Simplify right side
    132,235.60x = 13,251,981,896.43
  5. Step 5: Solve for x
    x = 13,251,981,896.43/132,235.60
  6. Step 6: Final answer
    x = 100,214.93

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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.