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Finding the Fourth Proportional to 248,247.84, 342,581.70 and 135,069.84

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Solution

The fourth proportional to 248,247.84, 342,581.70 and 135,069.84 is: 186,396.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,247.84 : 342,581.70 = 135,069.84 : x
  2. Step 2: Convert to fraction form
    248,247.84/342,581.70 = 135,069.84/x
  3. Step 3: Cross multiply
    248,247.84x = 342,581.70 × 135,069.84
  4. Step 4: Simplify right side
    248,247.84x = 46,272,455,405.93
  5. Step 5: Solve for x
    x = 46,272,455,405.93/248,247.84
  6. Step 6: Final answer
    x = 186,396.21

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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.