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Finding the Fourth Proportional to 111,038.60, 166,557.90 and 48,830.60

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Solution

The fourth proportional to 111,038.60, 166,557.90 and 48,830.60 is: 73,245.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,038.60 : 166,557.90 = 48,830.60 : x
  2. Step 2: Convert to fraction form
    111,038.60/166,557.90 = 48,830.60/x
  3. Step 3: Cross multiply
    111,038.60x = 166,557.90 × 48,830.60
  4. Step 4: Simplify right side
    111,038.60x = 8,133,122,191.74
  5. Step 5: Solve for x
    x = 8,133,122,191.74/111,038.60
  6. Step 6: Final answer
    x = 73,245.90

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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.