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Finding the Fourth Proportional to 178,274.36, 245,957.34 and 105,662.55

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Solution

The fourth proportional to 178,274.36, 245,957.34 and 105,662.55 is: 145,778.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,274.36 : 245,957.34 = 105,662.55 : x
  2. Step 2: Convert to fraction form
    178,274.36/245,957.34 = 105,662.55/x
  3. Step 3: Cross multiply
    178,274.36x = 245,957.34 × 105,662.55
  4. Step 4: Simplify right side
    178,274.36x = 25,988,481,054.19
  5. Step 5: Solve for x
    x = 25,988,481,054.19/178,274.36
  6. Step 6: Final answer
    x = 145,778.01

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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.