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Finding the Fourth Proportional to 223,432.40, 334,889.40 and 90,246.80

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Solution

The fourth proportional to 223,432.40, 334,889.40 and 90,246.80 is: 135,265.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,432.40 : 334,889.40 = 90,246.80 : x
  2. Step 2: Convert to fraction form
    223,432.40/334,889.40 = 90,246.80/x
  3. Step 3: Cross multiply
    223,432.40x = 334,889.40 × 90,246.80
  4. Step 4: Simplify right side
    223,432.40x = 30,222,696,703.92
  5. Step 5: Solve for x
    x = 30,222,696,703.92/223,432.40
  6. Step 6: Final answer
    x = 135,265.51

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1.5x scale

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.