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Finding the Fourth Proportional to 223,254, 334,793.52 and 90,109.44

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Solution

The fourth proportional to 223,254, 334,793.52 and 90,109.44 is: 135,128.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,254 : 334,793.52 = 90,109.44 : x
  2. Step 2: Convert to fraction form
    223,254/334,793.52 = 90,109.44/x
  3. Step 3: Cross multiply
    223,254x = 334,793.52 × 90,109.44
  4. Step 4: Simplify right side
    223,254x = 30,168,056,602.83
  5. Step 5: Solve for x
    x = 30,168,056,602.83/223,254
  6. Step 6: Final answer
    x = 135,128.85

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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.