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Finding the Fourth Proportional to 111,209.80, 166,814.70 and 48,880.30

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Solution

The fourth proportional to 111,209.80, 166,814.70 and 48,880.30 is: 73,320.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,209.80 : 166,814.70 = 48,880.30 : x
  2. Step 2: Convert to fraction form
    111,209.80/166,814.70 = 48,880.30/x
  3. Step 3: Cross multiply
    111,209.80x = 166,814.70 × 48,880.30
  4. Step 4: Simplify right side
    111,209.80x = 8,153,952,580.41
  5. Step 5: Solve for x
    x = 8,153,952,580.41/111,209.80
  6. Step 6: Final answer
    x = 73,320.45

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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.