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Finding the Fourth Proportional to 111,187.40, 166,802.70 and 48,007.40

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Solution

The fourth proportional to 111,187.40, 166,802.70 and 48,007.40 is: 72,020.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,187.40 : 166,802.70 = 48,007.40 : x
  2. Step 2: Convert to fraction form
    111,187.40/166,802.70 = 48,007.40/x
  3. Step 3: Cross multiply
    111,187.40x = 166,802.70 × 48,007.40
  4. Step 4: Simplify right side
    111,187.40x = 8,007,763,939.98
  5. Step 5: Solve for x
    x = 8,007,763,939.98/111,187.40
  6. Step 6: Final answer
    x = 72,020.43

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1.5x scale

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.