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Finding the Fourth Proportional to 248,345.69, 342,724.46 and 152,907.44

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Solution

The fourth proportional to 248,345.69, 342,724.46 and 152,907.44 is: 211,016.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,345.69 : 342,724.46 = 152,907.44 : x
  2. Step 2: Convert to fraction form
    248,345.69/342,724.46 = 152,907.44/x
  3. Step 3: Cross multiply
    248,345.69x = 342,724.46 × 152,907.44
  4. Step 4: Simplify right side
    248,345.69x = 52,405,117,325.82
  5. Step 5: Solve for x
    x = 52,405,117,325.82/248,345.69
  6. Step 6: Final answer
    x = 211,016.82

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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.