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Finding the Fourth Proportional to 372,300.72, 558,538.56 and 161,998.80

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Solution

The fourth proportional to 372,300.72, 558,538.56 and 161,998.80 is: 243,036.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,300.72 : 558,538.56 = 161,998.80 : x
  2. Step 2: Convert to fraction form
    372,300.72/558,538.56 = 161,998.80/x
  3. Step 3: Cross multiply
    372,300.72x = 558,538.56 × 161,998.80
  4. Step 4: Simplify right side
    372,300.72x = 90,482,576,473.73
  5. Step 5: Solve for x
    x = 90,482,576,473.73/372,300.72
  6. Step 6: Final answer
    x = 243,036.27

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1.5x scale

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.