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Finding the Fourth Proportional to 105,712.65, 158,568.26 and 25,749.65

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Solution

The fourth proportional to 105,712.65, 158,568.26 and 25,749.65 is: 38,624.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,712.65 : 158,568.26 = 25,749.65 : x
  2. Step 2: Convert to fraction form
    105,712.65/158,568.26 = 25,749.65/x
  3. Step 3: Cross multiply
    105,712.65x = 158,568.26 × 25,749.65
  4. Step 4: Simplify right side
    105,712.65x = 4,083,076,274.52
  5. Step 5: Solve for x
    x = 4,083,076,274.52/105,712.65
  6. Step 6: Final answer
    x = 38,624.29

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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.