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Finding the Fourth Proportional to 288,376.02, 397,957.86 and 167,588.28

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Solution

The fourth proportional to 288,376.02, 397,957.86 and 167,588.28 is: 231,271.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,376.02 : 397,957.86 = 167,588.28 : x
  2. Step 2: Convert to fraction form
    288,376.02/397,957.86 = 167,588.28/x
  3. Step 3: Cross multiply
    288,376.02x = 397,957.86 × 167,588.28
  4. Step 4: Simplify right side
    288,376.02x = 66,693,073,269.88
  5. Step 5: Solve for x
    x = 66,693,073,269.88/288,376.02
  6. Step 6: Final answer
    x = 231,271.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.