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Finding the Fourth Proportional to 412,762.32, 619,144.32 and 113,247.04

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Solution

The fourth proportional to 412,762.32, 619,144.32 and 113,247.04 is: 169,870.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,762.32 : 619,144.32 = 113,247.04 : x
  2. Step 2: Convert to fraction form
    412,762.32/619,144.32 = 113,247.04/x
  3. Step 3: Cross multiply
    412,762.32x = 619,144.32 × 113,247.04
  4. Step 4: Simplify right side
    412,762.32x = 70,116,261,572.81
  5. Step 5: Solve for x
    x = 70,116,261,572.81/412,762.32
  6. Step 6: Final answer
    x = 169,870.79

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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.