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Finding the Fourth Proportional to 93,920.40, 140,782.68 and 49,597.20

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Solution

The fourth proportional to 93,920.40, 140,782.68 and 49,597.20 is: 74,344.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,920.40 : 140,782.68 = 49,597.20 : x
  2. Step 2: Convert to fraction form
    93,920.40/140,782.68 = 49,597.20/x
  3. Step 3: Cross multiply
    93,920.40x = 140,782.68 × 49,597.20
  4. Step 4: Simplify right side
    93,920.40x = 6,982,426,736.50
  5. Step 5: Solve for x
    x = 6,982,426,736.50/93,920.40
  6. Step 6: Final answer
    x = 74,344.09

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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.