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Finding the Fourth Proportional to 372,043.56, 558,065.36 and 91,560.81

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Solution

The fourth proportional to 372,043.56, 558,065.36 and 91,560.81 is: 137,341.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,043.56 : 558,065.36 = 91,560.81 : x
  2. Step 2: Convert to fraction form
    372,043.56/558,065.36 = 91,560.81/x
  3. Step 3: Cross multiply
    372,043.56x = 558,065.36 × 91,560.81
  4. Step 4: Simplify right side
    372,043.56x = 51,096,916,394.54
  5. Step 5: Solve for x
    x = 51,096,916,394.54/372,043.56
  6. Step 6: Final answer
    x = 137,341.22

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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.