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Finding the Fourth Proportional to 111,574.80, 167,362.20 and 99,133.20

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Solution

The fourth proportional to 111,574.80, 167,362.20 and 99,133.20 is: 148,699.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,574.80 : 167,362.20 = 99,133.20 : x
  2. Step 2: Convert to fraction form
    111,574.80/167,362.20 = 99,133.20/x
  3. Step 3: Cross multiply
    111,574.80x = 167,362.20 × 99,133.20
  4. Step 4: Simplify right side
    111,574.80x = 16,591,150,445.04
  5. Step 5: Solve for x
    x = 16,591,150,445.04/111,574.80
  6. Step 6: Final answer
    x = 148,699.80

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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.