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Finding the Fourth Proportional to 66,044.80, 99,067.20 and 60,601.60

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Solution

The fourth proportional to 66,044.80, 99,067.20 and 60,601.60 is: 90,902.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,044.80 : 99,067.20 = 60,601.60 : x
  2. Step 2: Convert to fraction form
    66,044.80/99,067.20 = 60,601.60/x
  3. Step 3: Cross multiply
    66,044.80x = 99,067.20 × 60,601.60
  4. Step 4: Simplify right side
    66,044.80x = 6,003,630,827.52
  5. Step 5: Solve for x
    x = 6,003,630,827.52/66,044.80
  6. Step 6: Final answer
    x = 90,902.40

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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.