Home / 74,269.20-111,403.80-73,613.10

Finding the Fourth Proportional to 74,269.20, 111,403.80 and 73,613.10

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Solution

The fourth proportional to 74,269.20, 111,403.80 and 73,613.10 is: 110,419.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,269.20 : 111,403.80 = 73,613.10 : x
  2. Step 2: Convert to fraction form
    74,269.20/111,403.80 = 73,613.10/x
  3. Step 3: Cross multiply
    74,269.20x = 111,403.80 × 73,613.10
  4. Step 4: Simplify right side
    74,269.20x = 8,200,779,069.78
  5. Step 5: Solve for x
    x = 8,200,779,069.78/74,269.20
  6. Step 6: Final answer
    x = 110,419.65

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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.