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Finding the Fourth Proportional to 247,223.60, 370,835.40 and 122,807.60

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Solution

The fourth proportional to 247,223.60, 370,835.40 and 122,807.60 is: 184,211.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,223.60 : 370,835.40 = 122,807.60 : x
  2. Step 2: Convert to fraction form
    247,223.60/370,835.40 = 122,807.60/x
  3. Step 3: Cross multiply
    247,223.60x = 370,835.40 × 122,807.60
  4. Step 4: Simplify right side
    247,223.60x = 45,541,405,469.04
  5. Step 5: Solve for x
    x = 45,541,405,469.04/247,223.60
  6. Step 6: Final answer
    x = 184,211.40

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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.