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Finding the Fourth Proportional to 122,737.80, 184,106.70 and 103,038.60

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Solution

The fourth proportional to 122,737.80, 184,106.70 and 103,038.60 is: 154,557.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,737.80 : 184,106.70 = 103,038.60 : x
  2. Step 2: Convert to fraction form
    122,737.80/184,106.70 = 103,038.60/x
  3. Step 3: Cross multiply
    122,737.80x = 184,106.70 × 103,038.60
  4. Step 4: Simplify right side
    122,737.80x = 18,970,096,618.62
  5. Step 5: Solve for x
    x = 18,970,096,618.62/122,737.80
  6. Step 6: Final answer
    x = 154,557.90

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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.