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Finding the Fourth Proportional to 238,484.20, 357,724.82 and 60,990.90

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Solution

The fourth proportional to 238,484.20, 357,724.82 and 60,990.90 is: 91,485.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,484.20 : 357,724.82 = 60,990.90 : x
  2. Step 2: Convert to fraction form
    238,484.20/357,724.82 = 60,990.90/x
  3. Step 3: Cross multiply
    238,484.20x = 357,724.82 × 60,990.90
  4. Step 4: Simplify right side
    238,484.20x = 21,817,958,724.14
  5. Step 5: Solve for x
    x = 21,817,958,724.14/238,484.20
  6. Step 6: Final answer
    x = 91,485.97

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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.