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Finding the Fourth Proportional to 181,461.96, 250,428.82 and 100,907.48

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Solution

The fourth proportional to 181,461.96, 250,428.82 and 100,907.48 is: 139,258.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,461.96 : 250,428.82 = 100,907.48 : x
  2. Step 2: Convert to fraction form
    181,461.96/250,428.82 = 100,907.48/x
  3. Step 3: Cross multiply
    181,461.96x = 250,428.82 × 100,907.48
  4. Step 4: Simplify right side
    181,461.96x = 25,270,141,145.57
  5. Step 5: Solve for x
    x = 25,270,141,145.57/181,461.96
  6. Step 6: Final answer
    x = 139,258.61

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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.