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Finding the Fourth Proportional to 236,392.40, 355,463.40 and 197,901.20

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Solution

The fourth proportional to 236,392.40, 355,463.40 and 197,901.20 is: 297,584.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,392.40 : 355,463.40 = 197,901.20 : x
  2. Step 2: Convert to fraction form
    236,392.40/355,463.40 = 197,901.20/x
  3. Step 3: Cross multiply
    236,392.40x = 355,463.40 × 197,901.20
  4. Step 4: Simplify right side
    236,392.40x = 70,346,633,416.08
  5. Step 5: Solve for x
    x = 70,346,633,416.08/236,392.40
  6. Step 6: Final answer
    x = 297,584.16

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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.