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Finding the Fourth Proportional to 85,226.44, 127,838.96 and 25,258.90

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Solution

The fourth proportional to 85,226.44, 127,838.96 and 25,258.90 is: 37,888.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,226.44 : 127,838.96 = 25,258.90 : x
  2. Step 2: Convert to fraction form
    85,226.44/127,838.96 = 25,258.90/x
  3. Step 3: Cross multiply
    85,226.44x = 127,838.96 × 25,258.90
  4. Step 4: Simplify right side
    85,226.44x = 3,229,071,506.74
  5. Step 5: Solve for x
    x = 3,229,071,506.74/85,226.44
  6. Step 6: Final answer
    x = 37,888.14

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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.