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Finding the Fourth Proportional to 167,812.80, 251,719.20 and 101,457.60

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Solution

The fourth proportional to 167,812.80, 251,719.20 and 101,457.60 is: 152,186.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,812.80 : 251,719.20 = 101,457.60 : x
  2. Step 2: Convert to fraction form
    167,812.80/251,719.20 = 101,457.60/x
  3. Step 3: Cross multiply
    167,812.80x = 251,719.20 × 101,457.60
  4. Step 4: Simplify right side
    167,812.80x = 25,538,825,905.92
  5. Step 5: Solve for x
    x = 25,538,825,905.92/167,812.80
  6. Step 6: Final answer
    x = 152,186.40

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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.