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Finding the Fourth Proportional to 200,693.91, 276,730.59 and 127,999.57

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Solution

The fourth proportional to 200,693.91, 276,730.59 and 127,999.57 is: 176,494.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,693.91 : 276,730.59 = 127,999.57 : x
  2. Step 2: Convert to fraction form
    200,693.91/276,730.59 = 127,999.57/x
  3. Step 3: Cross multiply
    200,693.91x = 276,730.59 × 127,999.57
  4. Step 4: Simplify right side
    200,693.91x = 35,421,396,525.85
  5. Step 5: Solve for x
    x = 35,421,396,525.85/200,693.91
  6. Step 6: Final answer
    x = 176,494.63

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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.