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Finding the Fourth Proportional to 181,960.86, 251,102.64 and 101,386.65

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Solution

The fourth proportional to 181,960.86, 251,102.64 and 101,386.65 is: 139,911.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,960.86 : 251,102.64 = 101,386.65 : x
  2. Step 2: Convert to fraction form
    181,960.86/251,102.64 = 101,386.65/x
  3. Step 3: Cross multiply
    181,960.86x = 251,102.64 × 101,386.65
  4. Step 4: Simplify right side
    181,960.86x = 25,458,455,475.76
  5. Step 5: Solve for x
    x = 25,458,455,475.76/181,960.86
  6. Step 6: Final answer
    x = 139,911.71

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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.