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Finding the Fourth Proportional to 248,123.10, 372,002.40 and 98,289.30

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Solution

The fourth proportional to 248,123.10, 372,002.40 and 98,289.30 is: 147,361.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,123.10 : 372,002.40 = 98,289.30 : x
  2. Step 2: Convert to fraction form
    248,123.10/372,002.40 = 98,289.30/x
  3. Step 3: Cross multiply
    248,123.10x = 372,002.40 × 98,289.30
  4. Step 4: Simplify right side
    248,123.10x = 36,563,855,494.32
  5. Step 5: Solve for x
    x = 36,563,855,494.32/248,123.10
  6. Step 6: Final answer
    x = 147,361.76

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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.