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Finding the Fourth Proportional to 248,127.63, 342,494.16 and 140,769.01

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Solution

The fourth proportional to 248,127.63, 342,494.16 and 140,769.01 is: 194,305.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,127.63 : 342,494.16 = 140,769.01 : x
  2. Step 2: Convert to fraction form
    248,127.63/342,494.16 = 140,769.01/x
  3. Step 3: Cross multiply
    248,127.63x = 342,494.16 × 140,769.01
  4. Step 4: Simplify right side
    248,127.63x = 48,212,563,833.98
  5. Step 5: Solve for x
    x = 48,212,563,833.98/248,127.63
  6. Step 6: Final answer
    x = 194,305.50

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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.