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Finding the Fourth Proportional to 355,664.70, 534,663.45 and 251,207.10

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Solution

The fourth proportional to 355,664.70, 534,663.45 and 251,207.10 is: 377,634.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,664.70 : 534,663.45 = 251,207.10 : x
  2. Step 2: Convert to fraction form
    355,664.70/534,663.45 = 251,207.10/x
  3. Step 3: Cross multiply
    355,664.70x = 534,663.45 × 251,207.10
  4. Step 4: Simplify right side
    355,664.70x = 134,311,254,750.50
  5. Step 5: Solve for x
    x = 134,311,254,750.50/355,664.70
  6. Step 6: Final answer
    x = 377,634.48

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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.