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Finding the Fourth Proportional to 316,795.22, 437,174.90 and 171,597.86

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Solution

The fourth proportional to 316,795.22, 437,174.90 and 171,597.86 is: 236,803.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,795.22 : 437,174.90 = 171,597.86 : x
  2. Step 2: Convert to fraction form
    316,795.22/437,174.90 = 171,597.86/x
  3. Step 3: Cross multiply
    316,795.22x = 437,174.90 × 171,597.86
  4. Step 4: Simplify right side
    316,795.22x = 75,018,277,285.71
  5. Step 5: Solve for x
    x = 75,018,277,285.71/316,795.22
  6. Step 6: Final answer
    x = 236,803.69

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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.