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Finding the Fourth Proportional to 80,012.64, 119,832.12 and 63,260.16

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Solution

The fourth proportional to 80,012.64, 119,832.12 and 63,260.16 is: 94,742.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,012.64 : 119,832.12 = 63,260.16 : x
  2. Step 2: Convert to fraction form
    80,012.64/119,832.12 = 63,260.16/x
  3. Step 3: Cross multiply
    80,012.64x = 119,832.12 × 63,260.16
  4. Step 4: Simplify right side
    80,012.64x = 7,580,599,084.34
  5. Step 5: Solve for x
    x = 7,580,599,084.34/80,012.64
  6. Step 6: Final answer
    x = 94,742.52

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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.