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Finding the Fourth Proportional to 248,350.84, 342,723.90 and 135,173.32

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Solution

The fourth proportional to 248,350.84, 342,723.90 and 135,173.32 is: 186,539.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,350.84 : 342,723.90 = 135,173.32 : x
  2. Step 2: Convert to fraction form
    248,350.84/342,723.90 = 135,173.32/x
  3. Step 3: Cross multiply
    248,350.84x = 342,723.90 × 135,173.32
  4. Step 4: Simplify right side
    248,350.84x = 46,327,127,406.35
  5. Step 5: Solve for x
    x = 46,327,127,406.35/248,350.84
  6. Step 6: Final answer
    x = 186,539.04

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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.