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Finding the Fourth Proportional to 111,888.40, 167,833.02 and 45,329.80

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Solution

The fourth proportional to 111,888.40, 167,833.02 and 45,329.80 is: 67,994.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,888.40 : 167,833.02 = 45,329.80 : x
  2. Step 2: Convert to fraction form
    111,888.40/167,833.02 = 45,329.80/x
  3. Step 3: Cross multiply
    111,888.40x = 167,833.02 × 45,329.80
  4. Step 4: Simplify right side
    111,888.40x = 7,607,837,230.00
  5. Step 5: Solve for x
    x = 7,607,837,230.00/111,888.40
  6. Step 6: Final answer
    x = 67,994.87

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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.