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Finding the Fourth Proportional to 248,596.92, 343,061.97 and 135,419.70

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Solution

The fourth proportional to 248,596.92, 343,061.97 and 135,419.70 is: 186,878.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,596.92 : 343,061.97 = 135,419.70 : x
  2. Step 2: Convert to fraction form
    248,596.92/343,061.97 = 135,419.70/x
  3. Step 3: Cross multiply
    248,596.92x = 343,061.97 × 135,419.70
  4. Step 4: Simplify right side
    248,596.92x = 46,457,349,058.81
  5. Step 5: Solve for x
    x = 46,457,349,058.81/248,596.92
  6. Step 6: Final answer
    x = 186,878.22

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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.