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Finding the Fourth Proportional to 185,700.70, 256,266.18 and 100,817.74

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Solution

The fourth proportional to 185,700.70, 256,266.18 and 100,817.74 is: 139,128.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,700.70 : 256,266.18 = 100,817.74 : x
  2. Step 2: Convert to fraction form
    185,700.70/256,266.18 = 100,817.74/x
  3. Step 3: Cross multiply
    185,700.70x = 256,266.18 × 100,817.74
  4. Step 4: Simplify right side
    185,700.70x = 25,836,177,106.03
  5. Step 5: Solve for x
    x = 25,836,177,106.03/185,700.70
  6. Step 6: Final answer
    x = 139,128.05

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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.