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Finding the Fourth Proportional to 185,655.69, 256,203.09 and 100,772.64

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Solution

The fourth proportional to 185,655.69, 256,203.09 and 100,772.64 is: 139,065.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,655.69 : 256,203.09 = 100,772.64 : x
  2. Step 2: Convert to fraction form
    185,655.69/256,203.09 = 100,772.64/x
  3. Step 3: Cross multiply
    185,655.69x = 256,203.09 × 100,772.64
  4. Step 4: Simplify right side
    185,655.69x = 25,818,261,755.46
  5. Step 5: Solve for x
    x = 25,818,261,755.46/185,655.69
  6. Step 6: Final answer
    x = 139,065.29

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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.