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Finding the Fourth Proportional to 93,197.80, 139,680.12 and 73,398.16

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Solution

The fourth proportional to 93,197.80, 139,680.12 and 73,398.16 is: 110,005.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,197.80 : 139,680.12 = 73,398.16 : x
  2. Step 2: Convert to fraction form
    93,197.80/139,680.12 = 73,398.16/x
  3. Step 3: Cross multiply
    93,197.80x = 139,680.12 × 73,398.16
  4. Step 4: Simplify right side
    93,197.80x = 10,252,263,796.58
  5. Step 5: Solve for x
    x = 10,252,263,796.58/93,197.80
  6. Step 6: Final answer
    x = 110,005.43

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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.