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Finding the Fourth Proportional to 80,141.40, 110,466.84 and 54,292.08

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Solution

The fourth proportional to 80,141.40, 110,466.84 and 54,292.08 is: 74,836.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,141.40 : 110,466.84 = 54,292.08 : x
  2. Step 2: Convert to fraction form
    80,141.40/110,466.84 = 54,292.08/x
  3. Step 3: Cross multiply
    80,141.40x = 110,466.84 × 54,292.08
  4. Step 4: Simplify right side
    80,141.40x = 5,997,474,514.63
  5. Step 5: Solve for x
    x = 5,997,474,514.63/80,141.40
  6. Step 6: Final answer
    x = 74,836.16

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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.