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Finding the Fourth Proportional to 185,701.88, 256,264.62 and 100,818.20

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Solution

The fourth proportional to 185,701.88, 256,264.62 and 100,818.20 is: 139,126.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,701.88 : 256,264.62 = 100,818.20 : x
  2. Step 2: Convert to fraction form
    185,701.88/256,264.62 = 100,818.20/x
  3. Step 3: Cross multiply
    185,701.88x = 256,264.62 × 100,818.20
  4. Step 4: Simplify right side
    185,701.88x = 25,836,137,712.08
  5. Step 5: Solve for x
    x = 25,836,137,712.08/185,701.88
  6. Step 6: Final answer
    x = 139,126.96

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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.