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Finding the Fourth Proportional to 223,859.99, 308,919.66 and 133,195.20

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Solution

The fourth proportional to 223,859.99, 308,919.66 and 133,195.20 is: 183,805.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,859.99 : 308,919.66 = 133,195.20 : x
  2. Step 2: Convert to fraction form
    223,859.99/308,919.66 = 133,195.20/x
  3. Step 3: Cross multiply
    223,859.99x = 308,919.66 × 133,195.20
  4. Step 4: Simplify right side
    223,859.99x = 41,146,615,897.63
  5. Step 5: Solve for x
    x = 41,146,615,897.63/223,859.99
  6. Step 6: Final answer
    x = 183,805.14

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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.