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Finding the Fourth Proportional to 228,622.78, 342,300.48 and 172,292.32

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Solution

The fourth proportional to 228,622.78, 342,300.48 and 172,292.32 is: 257,960.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,622.78 : 342,300.48 = 172,292.32 : x
  2. Step 2: Convert to fraction form
    228,622.78/342,300.48 = 172,292.32/x
  3. Step 3: Cross multiply
    228,622.78x = 342,300.48 × 172,292.32
  4. Step 4: Simplify right side
    228,622.78x = 58,975,743,836.31
  5. Step 5: Solve for x
    x = 58,975,743,836.31/228,622.78
  6. Step 6: Final answer
    x = 257,960.93

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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.