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Finding the Fourth Proportional to 179,438.96, 268,957.28 and 72,798.16

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Solution

The fourth proportional to 179,438.96, 268,957.28 and 72,798.16 is: 109,115.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,438.96 : 268,957.28 = 72,798.16 : x
  2. Step 2: Convert to fraction form
    179,438.96/268,957.28 = 72,798.16/x
  3. Step 3: Cross multiply
    179,438.96x = 268,957.28 × 72,798.16
  4. Step 4: Simplify right side
    179,438.96x = 19,579,595,102.60
  5. Step 5: Solve for x
    x = 19,579,595,102.60/179,438.96
  6. Step 6: Final answer
    x = 109,115.63

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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.