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Finding the Fourth Proportional to 248,068.40, 372,102.60 and 189,019.40

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Solution

The fourth proportional to 248,068.40, 372,102.60 and 189,019.40 is: 283,529.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,068.40 : 372,102.60 = 189,019.40 : x
  2. Step 2: Convert to fraction form
    248,068.40/372,102.60 = 189,019.40/x
  3. Step 3: Cross multiply
    248,068.40x = 372,102.60 × 189,019.40
  4. Step 4: Simplify right side
    248,068.40x = 70,334,610,190.44
  5. Step 5: Solve for x
    x = 70,334,610,190.44/248,068.40
  6. Step 6: Final answer
    x = 283,529.10

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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.