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Finding the Fourth Proportional to 200,430.89, 276,598.60 and 109,786.85

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Solution

The fourth proportional to 200,430.89, 276,598.60 and 109,786.85 is: 151,508.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,430.89 : 276,598.60 = 109,786.85 : x
  2. Step 2: Convert to fraction form
    200,430.89/276,598.60 = 109,786.85/x
  3. Step 3: Cross multiply
    200,430.89x = 276,598.60 × 109,786.85
  4. Step 4: Simplify right side
    200,430.89x = 30,366,889,008.41
  5. Step 5: Solve for x
    x = 30,366,889,008.41/200,430.89
  6. Step 6: Final answer
    x = 151,508.03

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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.