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Finding the Fourth Proportional to 167,113.40, 250,752.78 and 78,373.71

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Solution

The fourth proportional to 167,113.40, 250,752.78 and 78,373.71 is: 117,599.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,113.40 : 250,752.78 = 78,373.71 : x
  2. Step 2: Convert to fraction form
    167,113.40/250,752.78 = 78,373.71/x
  3. Step 3: Cross multiply
    167,113.40x = 250,752.78 × 78,373.71
  4. Step 4: Simplify right side
    167,113.40x = 19,652,425,661.41
  5. Step 5: Solve for x
    x = 19,652,425,661.41/167,113.40
  6. Step 6: Final answer
    x = 117,599.34

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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.