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Finding the Fourth Proportional to 358,997.92, 495,501.56 and 223,134.48

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Solution

The fourth proportional to 358,997.92, 495,501.56 and 223,134.48 is: 307,978.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,997.92 : 495,501.56 = 223,134.48 : x
  2. Step 2: Convert to fraction form
    358,997.92/495,501.56 = 223,134.48/x
  3. Step 3: Cross multiply
    358,997.92x = 495,501.56 × 223,134.48
  4. Step 4: Simplify right side
    358,997.92x = 110,563,482,929.79
  5. Step 5: Solve for x
    x = 110,563,482,929.79/358,997.92
  6. Step 6: Final answer
    x = 307,978.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.