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Finding the Fourth Proportional to 80,230.72, 110,719.56 and 46,220.44

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Solution

The fourth proportional to 80,230.72, 110,719.56 and 46,220.44 is: 63,784.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,230.72 : 110,719.56 = 46,220.44 : x
  2. Step 2: Convert to fraction form
    80,230.72/110,719.56 = 46,220.44/x
  3. Step 3: Cross multiply
    80,230.72x = 110,719.56 × 46,220.44
  4. Step 4: Simplify right side
    80,230.72x = 5,117,506,779.81
  5. Step 5: Solve for x
    x = 5,117,506,779.81/80,230.72
  6. Step 6: Final answer
    x = 63,784.88

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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.