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Finding the Fourth Proportional to 238,990.46, 358,362.18 and 70,489.33

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Solution

The fourth proportional to 238,990.46, 358,362.18 and 70,489.33 is: 105,697.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,990.46 : 358,362.18 = 70,489.33 : x
  2. Step 2: Convert to fraction form
    238,990.46/358,362.18 = 70,489.33/x
  3. Step 3: Cross multiply
    238,990.46x = 358,362.18 × 70,489.33
  4. Step 4: Simplify right side
    238,990.46x = 25,260,709,069.63
  5. Step 5: Solve for x
    x = 25,260,709,069.63/238,990.46
  6. Step 6: Final answer
    x = 105,697.56

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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.