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Finding the Fourth Proportional to 111,688.95, 167,439.23 and 48,461.41

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Solution

The fourth proportional to 111,688.95, 167,439.23 and 48,461.41 is: 72,651.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,688.95 : 167,439.23 = 48,461.41 : x
  2. Step 2: Convert to fraction form
    111,688.95/167,439.23 = 48,461.41/x
  3. Step 3: Cross multiply
    111,688.95x = 167,439.23 × 48,461.41
  4. Step 4: Simplify right side
    111,688.95x = 8,114,341,658.46
  5. Step 5: Solve for x
    x = 8,114,341,658.46/111,688.95
  6. Step 6: Final answer
    x = 72,651.25

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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.