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Finding the Fourth Proportional to 238,991.46, 358,363.68 and 70,490.33

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Solution

The fourth proportional to 238,991.46, 358,363.68 and 70,490.33 is: 105,699.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,991.46 : 358,363.68 = 70,490.33 : x
  2. Step 2: Convert to fraction form
    238,991.46/358,363.68 = 70,490.33/x
  3. Step 3: Cross multiply
    238,991.46x = 358,363.68 × 70,490.33
  4. Step 4: Simplify right side
    238,991.46x = 25,261,174,063.21
  5. Step 5: Solve for x
    x = 25,261,174,063.21/238,991.46
  6. Step 6: Final answer
    x = 105,699.07

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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.