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Finding the Fourth Proportional to 120,042.58, 179,885.68 and 48,878.16

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Solution

The fourth proportional to 120,042.58, 179,885.68 and 48,878.16 is: 73,244.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,042.58 : 179,885.68 = 48,878.16 : x
  2. Step 2: Convert to fraction form
    120,042.58/179,885.68 = 48,878.16/x
  3. Step 3: Cross multiply
    120,042.58x = 179,885.68 × 48,878.16
  4. Step 4: Simplify right side
    120,042.58x = 8,792,481,048.75
  5. Step 5: Solve for x
    x = 8,792,481,048.75/120,042.58
  6. Step 6: Final answer
    x = 73,244.69

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1.5x scale

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.