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Finding the Fourth Proportional to 167,280, 250,958.88 and 56,472

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Solution

The fourth proportional to 167,280, 250,958.88 and 56,472 is: 84,721.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,280 : 250,958.88 = 56,472 : x
  2. Step 2: Convert to fraction form
    167,280/250,958.88 = 56,472/x
  3. Step 3: Cross multiply
    167,280x = 250,958.88 × 56,472
  4. Step 4: Simplify right side
    167,280x = 14,172,149,871.36
  5. Step 5: Solve for x
    x = 14,172,149,871.36/167,280
  6. Step 6: Final answer
    x = 84,721.13

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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.