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Finding the Fourth Proportional to 185,657.56, 256,207.74 and 100,774.72

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Solution

The fourth proportional to 185,657.56, 256,207.74 and 100,774.72 is: 139,069.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,657.56 : 256,207.74 = 100,774.72 : x
  2. Step 2: Convert to fraction form
    185,657.56/256,207.74 = 100,774.72/x
  3. Step 3: Cross multiply
    185,657.56x = 256,207.74 × 100,774.72
  4. Step 4: Simplify right side
    185,657.56x = 25,819,263,260.33
  5. Step 5: Solve for x
    x = 25,819,263,260.33/185,657.56
  6. Step 6: Final answer
    x = 139,069.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.