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Finding the Fourth Proportional to 248,072.70, 342,298.80 and 146,118.46

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Solution

The fourth proportional to 248,072.70, 342,298.80 and 146,118.46 is: 201,619.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,072.70 : 342,298.80 = 146,118.46 : x
  2. Step 2: Convert to fraction form
    248,072.70/342,298.80 = 146,118.46/x
  3. Step 3: Cross multiply
    248,072.70x = 342,298.80 × 146,118.46
  4. Step 4: Simplify right side
    248,072.70x = 50,016,173,515.85
  5. Step 5: Solve for x
    x = 50,016,173,515.85/248,072.70
  6. Step 6: Final answer
    x = 201,619.02

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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.