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Finding the Fourth Proportional to 132,161.46, 182,385.53 and 74,800.78

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Solution

The fourth proportional to 132,161.46, 182,385.53 and 74,800.78 is: 103,226.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,161.46 : 182,385.53 = 74,800.78 : x
  2. Step 2: Convert to fraction form
    132,161.46/182,385.53 = 74,800.78/x
  3. Step 3: Cross multiply
    132,161.46x = 182,385.53 × 74,800.78
  4. Step 4: Simplify right side
    132,161.46x = 13,642,579,904.71
  5. Step 5: Solve for x
    x = 13,642,579,904.71/132,161.46
  6. Step 6: Final answer
    x = 103,226.61

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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.