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Finding the Fourth Proportional to 167,347.94, 251,021.90 and 42,688.94

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Solution

The fourth proportional to 167,347.94, 251,021.90 and 42,688.94 is: 64,033.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,347.94 : 251,021.90 = 42,688.94 : x
  2. Step 2: Convert to fraction form
    167,347.94/251,021.90 = 42,688.94/x
  3. Step 3: Cross multiply
    167,347.94x = 251,021.90 × 42,688.94
  4. Step 4: Simplify right side
    167,347.94x = 10,715,857,359.23
  5. Step 5: Solve for x
    x = 10,715,857,359.23/167,347.94
  6. Step 6: Final answer
    x = 64,033.40

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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.