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Finding the Fourth Proportional to 181,453.57, 250,386.90 and 100,868.09

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Solution

The fourth proportional to 181,453.57, 250,386.90 and 100,868.09 is: 139,187.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,453.57 : 250,386.90 = 100,868.09 : x
  2. Step 2: Convert to fraction form
    181,453.57/250,386.90 = 100,868.09/x
  3. Step 3: Cross multiply
    181,453.57x = 250,386.90 × 100,868.09
  4. Step 4: Simplify right side
    181,453.57x = 25,256,046,733.83
  5. Step 5: Solve for x
    x = 25,256,046,733.83/181,453.57
  6. Step 6: Final answer
    x = 139,187.38

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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.