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Finding the Fourth Proportional to 223,374.60, 335,061.90 and 128,568.15

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Solution

The fourth proportional to 223,374.60, 335,061.90 and 128,568.15 is: 192,852.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,374.60 : 335,061.90 = 128,568.15 : x
  2. Step 2: Convert to fraction form
    223,374.60/335,061.90 = 128,568.15/x
  3. Step 3: Cross multiply
    223,374.60x = 335,061.90 × 128,568.15
  4. Step 4: Simplify right side
    223,374.60x = 43,078,288,618.49
  5. Step 5: Solve for x
    x = 43,078,288,618.49/223,374.60
  6. Step 6: Final answer
    x = 192,852.23

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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.