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Finding the Fourth Proportional to 294,087.68, 405,731.04 and 173,155.04

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Solution

The fourth proportional to 294,087.68, 405,731.04 and 173,155.04 is: 238,889.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,087.68 : 405,731.04 = 173,155.04 : x
  2. Step 2: Convert to fraction form
    294,087.68/405,731.04 = 173,155.04/x
  3. Step 3: Cross multiply
    294,087.68x = 405,731.04 × 173,155.04
  4. Step 4: Simplify right side
    294,087.68x = 70,254,374,460.44
  5. Step 5: Solve for x
    x = 70,254,374,460.44/294,087.68
  6. Step 6: Final answer
    x = 238,889.21

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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.