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Finding the Fourth Proportional to 227,477.28, 340,516.08 and 148,421.28

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Solution

The fourth proportional to 227,477.28, 340,516.08 and 148,421.28 is: 222,175.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,477.28 : 340,516.08 = 148,421.28 : x
  2. Step 2: Convert to fraction form
    227,477.28/340,516.08 = 148,421.28/x
  3. Step 3: Cross multiply
    227,477.28x = 340,516.08 × 148,421.28
  4. Step 4: Simplify right side
    227,477.28x = 50,539,832,454.18
  5. Step 5: Solve for x
    x = 50,539,832,454.18/227,477.28
  6. Step 6: Final answer
    x = 222,175.30

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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.