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Finding the Fourth Proportional to 223,422.70, 335,134.05 and 213,054.70

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Solution

The fourth proportional to 223,422.70, 335,134.05 and 213,054.70 is: 319,582.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,422.70 : 335,134.05 = 213,054.70 : x
  2. Step 2: Convert to fraction form
    223,422.70/335,134.05 = 213,054.70/x
  3. Step 3: Cross multiply
    223,422.70x = 335,134.05 × 213,054.70
  4. Step 4: Simplify right side
    223,422.70x = 71,401,884,482.54
  5. Step 5: Solve for x
    x = 71,401,884,482.54/223,422.70
  6. Step 6: Final answer
    x = 319,582.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.