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Finding the Fourth Proportional to 319,650.66, 441,105.02 and 176,408.86

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Solution

The fourth proportional to 319,650.66, 441,105.02 and 176,408.86 is: 243,437.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,650.66 : 441,105.02 = 176,408.86 : x
  2. Step 2: Convert to fraction form
    319,650.66/441,105.02 = 176,408.86/x
  3. Step 3: Cross multiply
    319,650.66x = 441,105.02 × 176,408.86
  4. Step 4: Simplify right side
    319,650.66x = 77,814,833,718.48
  5. Step 5: Solve for x
    x = 77,814,833,718.48/319,650.66
  6. Step 6: Final answer
    x = 243,437.11

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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.