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Finding the Fourth Proportional to 185,796.13, 256,397.25 and 100,913.80

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Solution

The fourth proportional to 185,796.13, 256,397.25 and 100,913.80 is: 139,260.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,796.13 : 256,397.25 = 100,913.80 : x
  2. Step 2: Convert to fraction form
    185,796.13/256,397.25 = 100,913.80/x
  3. Step 3: Cross multiply
    185,796.13x = 256,397.25 × 100,913.80
  4. Step 4: Simplify right side
    185,796.13x = 25,874,020,807.05
  5. Step 5: Solve for x
    x = 25,874,020,807.05/185,796.13
  6. Step 6: Final answer
    x = 139,260.28

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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.