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Finding the Fourth Proportional to 223,216.88, 308,299 and 187,049.36

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Solution

The fourth proportional to 223,216.88, 308,299 and 187,049.36 is: 258,345.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,216.88 : 308,299 = 187,049.36 : x
  2. Step 2: Convert to fraction form
    223,216.88/308,299 = 187,049.36/x
  3. Step 3: Cross multiply
    223,216.88x = 308,299 × 187,049.36
  4. Step 4: Simplify right side
    223,216.88x = 57,667,130,638.64
  5. Step 5: Solve for x
    x = 57,667,130,638.64/223,216.88
  6. Step 6: Final answer
    x = 258,345.74

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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.