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Finding the Fourth Proportional to 185,590.45, 256,115.51 and 100,707.52

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Solution

The fourth proportional to 185,590.45, 256,115.51 and 100,707.52 is: 138,976.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,590.45 : 256,115.51 = 100,707.52 : x
  2. Step 2: Convert to fraction form
    185,590.45/256,115.51 = 100,707.52/x
  3. Step 3: Cross multiply
    185,590.45x = 256,115.51 × 100,707.52
  4. Step 4: Simplify right side
    185,590.45x = 25,792,757,845.64
  5. Step 5: Solve for x
    x = 25,792,757,845.64/185,590.45
  6. Step 6: Final answer
    x = 138,976.75

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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.