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Finding the Fourth Proportional to 248,181.81, 372,334.79 and 70,688.82

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Solution

The fourth proportional to 248,181.81, 372,334.79 and 70,688.82 is: 106,050.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,181.81 : 372,334.79 = 70,688.82 : x
  2. Step 2: Convert to fraction form
    248,181.81/372,334.79 = 70,688.82/x
  3. Step 3: Cross multiply
    248,181.81x = 372,334.79 × 70,688.82
  4. Step 4: Simplify right side
    248,181.81x = 26,319,907,870.24
  5. Step 5: Solve for x
    x = 26,319,907,870.24/248,181.81
  6. Step 6: Final answer
    x = 106,050.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.