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Finding the Fourth Proportional to 223,898.28, 308,991.06 and 127,108.92

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Solution

The fourth proportional to 223,898.28, 308,991.06 and 127,108.92 is: 175,416.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,898.28 : 308,991.06 = 127,108.92 : x
  2. Step 2: Convert to fraction form
    223,898.28/308,991.06 = 127,108.92/x
  3. Step 3: Cross multiply
    223,898.28x = 308,991.06 × 127,108.92
  4. Step 4: Simplify right side
    223,898.28x = 39,275,519,926.26
  5. Step 5: Solve for x
    x = 39,275,519,926.26/223,898.28
  6. Step 6: Final answer
    x = 175,416.80

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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.