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Finding the Fourth Proportional to 235,475.93, 353,226.12 and 77,716.69

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Solution

The fourth proportional to 235,475.93, 353,226.12 and 77,716.69 is: 116,579.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,475.93 : 353,226.12 = 77,716.69 : x
  2. Step 2: Convert to fraction form
    235,475.93/353,226.12 = 77,716.69/x
  3. Step 3: Cross multiply
    235,475.93x = 353,226.12 × 77,716.69
  4. Step 4: Simplify right side
    235,475.93x = 27,451,563,101.81
  5. Step 5: Solve for x
    x = 27,451,563,101.81/235,475.93
  6. Step 6: Final answer
    x = 116,579.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.