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Finding the Fourth Proportional to 238,478.44, 357,451.22 and 103,386.56

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Solution

The fourth proportional to 238,478.44, 357,451.22 and 103,386.56 is: 154,964.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,478.44 : 357,451.22 = 103,386.56 : x
  2. Step 2: Convert to fraction form
    238,478.44/357,451.22 = 103,386.56/x
  3. Step 3: Cross multiply
    238,478.44x = 357,451.22 × 103,386.56
  4. Step 4: Simplify right side
    238,478.44x = 36,955,652,003.60
  5. Step 5: Solve for x
    x = 36,955,652,003.60/238,478.44
  6. Step 6: Final answer
    x = 154,964.33

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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.