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Finding the Fourth Proportional to 111,004.80, 166,507.20 and 97,180.80

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Solution

The fourth proportional to 111,004.80, 166,507.20 and 97,180.80 is: 145,771.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,004.80 : 166,507.20 = 97,180.80 : x
  2. Step 2: Convert to fraction form
    111,004.80/166,507.20 = 97,180.80/x
  3. Step 3: Cross multiply
    111,004.80x = 166,507.20 × 97,180.80
  4. Step 4: Simplify right side
    111,004.80x = 16,181,302,901.76
  5. Step 5: Solve for x
    x = 16,181,302,901.76/111,004.80
  6. Step 6: Final answer
    x = 145,771.20

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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.