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Finding the Fourth Proportional to 117,250.86, 161,809.18 and 71,953.86

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Solution

The fourth proportional to 117,250.86, 161,809.18 and 71,953.86 is: 99,298.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,250.86 : 161,809.18 = 71,953.86 : x
  2. Step 2: Convert to fraction form
    117,250.86/161,809.18 = 71,953.86/x
  3. Step 3: Cross multiply
    117,250.86x = 161,809.18 × 71,953.86
  4. Step 4: Simplify right side
    117,250.86x = 11,642,795,084.43
  5. Step 5: Solve for x
    x = 11,642,795,084.43/117,250.86
  6. Step 6: Final answer
    x = 99,298.16

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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.