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Finding the Fourth Proportional to 93,412.80, 140,119.20 and 54,046.80

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Solution

The fourth proportional to 93,412.80, 140,119.20 and 54,046.80 is: 81,070.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,412.80 : 140,119.20 = 54,046.80 : x
  2. Step 2: Convert to fraction form
    93,412.80/140,119.20 = 54,046.80/x
  3. Step 3: Cross multiply
    93,412.80x = 140,119.20 × 54,046.80
  4. Step 4: Simplify right side
    93,412.80x = 7,572,994,378.56
  5. Step 5: Solve for x
    x = 7,572,994,378.56/93,412.80
  6. Step 6: Final answer
    x = 81,070.20

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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.