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Finding the Fourth Proportional to 111,523.68, 153,903.24 and 63,779.04

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Solution

The fourth proportional to 111,523.68, 153,903.24 and 63,779.04 is: 88,015.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,523.68 : 153,903.24 = 63,779.04 : x
  2. Step 2: Convert to fraction form
    111,523.68/153,903.24 = 63,779.04/x
  3. Step 3: Cross multiply
    111,523.68x = 153,903.24 × 63,779.04
  4. Step 4: Simplify right side
    111,523.68x = 9,815,800,900.09
  5. Step 5: Solve for x
    x = 9,815,800,900.09/111,523.68
  6. Step 6: Final answer
    x = 88,015.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.