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Finding the Fourth Proportional to 167,718.60, 251,715.60 and 166,406.40

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Solution

The fourth proportional to 167,718.60, 251,715.60 and 166,406.40 is: 249,746.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,718.60 : 251,715.60 = 166,406.40 : x
  2. Step 2: Convert to fraction form
    167,718.60/251,715.60 = 166,406.40/x
  3. Step 3: Cross multiply
    167,718.60x = 251,715.60 × 166,406.40
  4. Step 4: Simplify right side
    167,718.60x = 41,887,086,819.84
  5. Step 5: Solve for x
    x = 41,887,086,819.84/167,718.60
  6. Step 6: Final answer
    x = 249,746.22

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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.