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Finding the Fourth Proportional to 185,689.76, 256,254.96 and 100,806.82

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Solution

The fourth proportional to 185,689.76, 256,254.96 and 100,806.82 is: 139,115.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,689.76 : 256,254.96 = 100,806.82 : x
  2. Step 2: Convert to fraction form
    185,689.76/256,254.96 = 100,806.82/x
  3. Step 3: Cross multiply
    185,689.76x = 256,254.96 × 100,806.82
  4. Step 4: Simplify right side
    185,689.76x = 25,832,247,626.83
  5. Step 5: Solve for x
    x = 25,832,247,626.83/185,689.76
  6. Step 6: Final answer
    x = 139,115.09

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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.