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Finding the Fourth Proportional to 248,706.02, 343,214.75 and 135,528.77

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Solution

The fourth proportional to 248,706.02, 343,214.75 and 135,528.77 is: 187,029.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,706.02 : 343,214.75 = 135,528.77 : x
  2. Step 2: Convert to fraction form
    248,706.02/343,214.75 = 135,528.77/x
  3. Step 3: Cross multiply
    248,706.02x = 343,214.75 × 135,528.77
  4. Step 4: Simplify right side
    248,706.02x = 46,515,472,913.36
  5. Step 5: Solve for x
    x = 46,515,472,913.36/248,706.02
  6. Step 6: Final answer
    x = 187,029.94

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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.