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Finding the Fourth Proportional to 316,804.41, 437,186.39 and 171,607.46

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Solution

The fourth proportional to 316,804.41, 437,186.39 and 171,607.46 is: 236,816.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,804.41 : 437,186.39 = 171,607.46 : x
  2. Step 2: Convert to fraction form
    316,804.41/437,186.39 = 171,607.46/x
  3. Step 3: Cross multiply
    316,804.41x = 437,186.39 × 171,607.46
  4. Step 4: Simplify right side
    316,804.41x = 75,024,442,890.50
  5. Step 5: Solve for x
    x = 75,024,442,890.50/316,804.41
  6. Step 6: Final answer
    x = 236,816.28

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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.