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Finding the Fourth Proportional to 125,395.08, 187,843.49 and 69,095.55

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Solution

The fourth proportional to 125,395.08, 187,843.49 and 69,095.55 is: 103,506.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,395.08 : 187,843.49 = 69,095.55 : x
  2. Step 2: Convert to fraction form
    125,395.08/187,843.49 = 69,095.55/x
  3. Step 3: Cross multiply
    125,395.08x = 187,843.49 × 69,095.55
  4. Step 4: Simplify right side
    125,395.08x = 12,979,149,255.47
  5. Step 5: Solve for x
    x = 12,979,149,255.47/125,395.08
  6. Step 6: Final answer
    x = 103,506.05

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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.