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Finding the Fourth Proportional to 235,785.54, 353,681.97 and 131,268.81

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Solution

The fourth proportional to 235,785.54, 353,681.97 and 131,268.81 is: 196,905.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,785.54 : 353,681.97 = 131,268.81 : x
  2. Step 2: Convert to fraction form
    235,785.54/353,681.97 = 131,268.81/x
  3. Step 3: Cross multiply
    235,785.54x = 353,681.97 × 131,268.81
  4. Step 4: Simplify right side
    235,785.54x = 46,427,411,320.36
  5. Step 5: Solve for x
    x = 46,427,411,320.36/235,785.54
  6. Step 6: Final answer
    x = 196,905.25

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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.