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Finding the Fourth Proportional to 168,687.36, 232,779.42 and 93,231

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Solution

The fourth proportional to 168,687.36, 232,779.42 and 93,231 is: 128,653.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,687.36 : 232,779.42 = 93,231 : x
  2. Step 2: Convert to fraction form
    168,687.36/232,779.42 = 93,231/x
  3. Step 3: Cross multiply
    168,687.36x = 232,779.42 × 93,231
  4. Step 4: Simplify right side
    168,687.36x = 21,702,258,106.02
  5. Step 5: Solve for x
    x = 21,702,258,106.02/168,687.36
  6. Step 6: Final answer
    x = 128,653.73

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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.