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Finding the Fourth Proportional to 238,889.96, 358,388.22 and 72,690.92

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Solution

The fourth proportional to 238,889.96, 358,388.22 and 72,690.92 is: 109,052.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,889.96 : 358,388.22 = 72,690.92 : x
  2. Step 2: Convert to fraction form
    238,889.96/358,388.22 = 72,690.92/x
  3. Step 3: Cross multiply
    238,889.96x = 358,388.22 × 72,690.92
  4. Step 4: Simplify right side
    238,889.96x = 26,051,569,428.96
  5. Step 5: Solve for x
    x = 26,051,569,428.96/238,889.96
  6. Step 6: Final answer
    x = 109,052.59

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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.