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Finding the Fourth Proportional to 185,953.68, 256,617 and 101,072.40

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Solution

The fourth proportional to 185,953.68, 256,617 and 101,072.40 is: 139,480.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,953.68 : 256,617 = 101,072.40 : x
  2. Step 2: Convert to fraction form
    185,953.68/256,617 = 101,072.40/x
  3. Step 3: Cross multiply
    185,953.68x = 256,617 × 101,072.40
  4. Step 4: Simplify right side
    185,953.68x = 25,936,896,070.80
  5. Step 5: Solve for x
    x = 25,936,896,070.80/185,953.68
  6. Step 6: Final answer
    x = 139,480.41

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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.