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Finding the Fourth Proportional to 181,892.39, 251,011.56 and 105,455.98

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Solution

The fourth proportional to 181,892.39, 251,011.56 and 105,455.98 is: 145,529.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,892.39 : 251,011.56 = 105,455.98 : x
  2. Step 2: Convert to fraction form
    181,892.39/251,011.56 = 105,455.98/x
  3. Step 3: Cross multiply
    181,892.39x = 251,011.56 × 105,455.98
  4. Step 4: Simplify right side
    181,892.39x = 26,470,668,755.22
  5. Step 5: Solve for x
    x = 26,470,668,755.22/181,892.39
  6. Step 6: Final answer
    x = 145,529.29

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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.