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Finding the Fourth Proportional to 183,930.62, 253,828.78 and 103,353.32

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Solution

The fourth proportional to 183,930.62, 253,828.78 and 103,353.32 is: 142,630.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,930.62 : 253,828.78 = 103,353.32 : x
  2. Step 2: Convert to fraction form
    183,930.62/253,828.78 = 103,353.32/x
  3. Step 3: Cross multiply
    183,930.62x = 253,828.78 × 103,353.32
  4. Step 4: Simplify right side
    183,930.62x = 26,234,047,124.55
  5. Step 5: Solve for x
    x = 26,234,047,124.55/183,930.62
  6. Step 6: Final answer
    x = 142,630.12

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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.