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Finding the Fourth Proportional to 157,991.10, 218,030.31 and 94,334.46

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Solution

The fourth proportional to 157,991.10, 218,030.31 and 94,334.46 is: 130,183.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,991.10 : 218,030.31 = 94,334.46 : x
  2. Step 2: Convert to fraction form
    157,991.10/218,030.31 = 94,334.46/x
  3. Step 3: Cross multiply
    157,991.10x = 218,030.31 × 94,334.46
  4. Step 4: Simplify right side
    157,991.10x = 20,567,771,557.48
  5. Step 5: Solve for x
    x = 20,567,771,557.48/157,991.10
  6. Step 6: Final answer
    x = 130,183.10

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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.