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Finding the Fourth Proportional to 236,865.20, 355,492.20 and 229,089.20

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Solution

The fourth proportional to 236,865.20, 355,492.20 and 229,089.20 is: 343,821.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,865.20 : 355,492.20 = 229,089.20 : x
  2. Step 2: Convert to fraction form
    236,865.20/355,492.20 = 229,089.20/x
  3. Step 3: Cross multiply
    236,865.20x = 355,492.20 × 229,089.20
  4. Step 4: Simplify right side
    236,865.20x = 81,439,423,704.24
  5. Step 5: Solve for x
    x = 81,439,423,704.24/236,865.20
  6. Step 6: Final answer
    x = 343,821.82

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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.