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Finding the Fourth Proportional to 111,409.20, 167,218.20 and 58,856.40

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Solution

The fourth proportional to 111,409.20, 167,218.20 and 58,856.40 is: 88,339.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,409.20 : 167,218.20 = 58,856.40 : x
  2. Step 2: Convert to fraction form
    111,409.20/167,218.20 = 58,856.40/x
  3. Step 3: Cross multiply
    111,409.20x = 167,218.20 × 58,856.40
  4. Step 4: Simplify right side
    111,409.20x = 9,841,861,266.48
  5. Step 5: Solve for x
    x = 9,841,861,266.48/111,409.20
  6. Step 6: Final answer
    x = 88,339.75

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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.