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Finding the Fourth Proportional to 248,596.47, 343,063.22 and 135,419.22

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Solution

The fourth proportional to 248,596.47, 343,063.22 and 135,419.22 is: 186,878.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,596.47 : 343,063.22 = 135,419.22 : x
  2. Step 2: Convert to fraction form
    248,596.47/343,063.22 = 135,419.22/x
  3. Step 3: Cross multiply
    248,596.47x = 343,063.22 × 135,419.22
  4. Step 4: Simplify right side
    248,596.47x = 46,457,352,985.99
  5. Step 5: Solve for x
    x = 46,457,352,985.99/248,596.47
  6. Step 6: Final answer
    x = 186,878.57

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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.