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Finding the Fourth Proportional to 228,420.29, 342,623.30 and 108,563.52

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Solution

The fourth proportional to 228,420.29, 342,623.30 and 108,563.52 is: 162,841.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,420.29 : 342,623.30 = 108,563.52 : x
  2. Step 2: Convert to fraction form
    228,420.29/342,623.30 = 108,563.52/x
  3. Step 3: Cross multiply
    228,420.29x = 342,623.30 × 108,563.52
  4. Step 4: Simplify right side
    228,420.29x = 37,196,390,939.20
  5. Step 5: Solve for x
    x = 37,196,390,939.20/228,420.29
  6. Step 6: Final answer
    x = 162,841.89

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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.