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Finding the Fourth Proportional to 248,199.58, 372,188.64 and 70,665.05

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Solution

The fourth proportional to 248,199.58, 372,188.64 and 70,665.05 is: 105,966.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,199.58 : 372,188.64 = 70,665.05 : x
  2. Step 2: Convert to fraction form
    248,199.58/372,188.64 = 70,665.05/x
  3. Step 3: Cross multiply
    248,199.58x = 372,188.64 × 70,665.05
  4. Step 4: Simplify right side
    248,199.58x = 26,300,728,855.03
  5. Step 5: Solve for x
    x = 26,300,728,855.03/248,199.58
  6. Step 6: Final answer
    x = 105,966.05

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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.