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Finding the Fourth Proportional to 167,320.88, 251,073.58 and 78,572.08

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Solution

The fourth proportional to 167,320.88, 251,073.58 and 78,572.08 is: 117,901.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,320.88 : 251,073.58 = 78,572.08 : x
  2. Step 2: Convert to fraction form
    167,320.88/251,073.58 = 78,572.08/x
  3. Step 3: Cross multiply
    167,320.88x = 251,073.58 × 78,572.08
  4. Step 4: Simplify right side
    167,320.88x = 19,727,372,321.34
  5. Step 5: Solve for x
    x = 19,727,372,321.34/167,320.88
  6. Step 6: Final answer
    x = 117,901.44

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1.5x scale

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.