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Finding the Fourth Proportional to 153,601.83, 211,963.77 and 85,626.27

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Solution

The fourth proportional to 153,601.83, 211,963.77 and 85,626.27 is: 118,160.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,601.83 : 211,963.77 = 85,626.27 : x
  2. Step 2: Convert to fraction form
    153,601.83/211,963.77 = 85,626.27/x
  3. Step 3: Cross multiply
    153,601.83x = 211,963.77 × 85,626.27
  4. Step 4: Simplify right side
    153,601.83x = 18,149,667,000.24
  5. Step 5: Solve for x
    x = 18,149,667,000.24/153,601.83
  6. Step 6: Final answer
    x = 118,160.49

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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.