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Finding the Fourth Proportional to 181,903.34, 251,034.18 and 101,330.86

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Solution

The fourth proportional to 181,903.34, 251,034.18 and 101,330.86 is: 139,840.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,903.34 : 251,034.18 = 101,330.86 : x
  2. Step 2: Convert to fraction form
    181,903.34/251,034.18 = 101,330.86/x
  3. Step 3: Cross multiply
    181,903.34x = 251,034.18 × 101,330.86
  4. Step 4: Simplify right side
    181,903.34x = 25,437,509,348.79
  5. Step 5: Solve for x
    x = 25,437,509,348.79/181,903.34
  6. Step 6: Final answer
    x = 139,840.80

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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.