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Finding the Fourth Proportional to 248,560.50, 342,767.22 and 153,048.60

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Solution

The fourth proportional to 248,560.50, 342,767.22 and 153,048.60 is: 211,055.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,560.50 : 342,767.22 = 153,048.60 : x
  2. Step 2: Convert to fraction form
    248,560.50/342,767.22 = 153,048.60/x
  3. Step 3: Cross multiply
    248,560.50x = 342,767.22 × 153,048.60
  4. Step 4: Simplify right side
    248,560.50x = 52,460,043,146.89
  5. Step 5: Solve for x
    x = 52,460,043,146.89/248,560.50
  6. Step 6: Final answer
    x = 211,055.43

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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.