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Finding the Fourth Proportional to 111,332.40, 166,998.60 and 49,124.40

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Solution

The fourth proportional to 111,332.40, 166,998.60 and 49,124.40 is: 73,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,332.40 : 166,998.60 = 49,124.40 : x
  2. Step 2: Convert to fraction form
    111,332.40/166,998.60 = 49,124.40/x
  3. Step 3: Cross multiply
    111,332.40x = 166,998.60 × 49,124.40
  4. Step 4: Simplify right side
    111,332.40x = 8,203,706,025.84
  5. Step 5: Solve for x
    x = 8,203,706,025.84/111,332.40
  6. Step 6: Final answer
    x = 73,686.60

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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.