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Finding the Fourth Proportional to 80,309.09, 110,823.56 and 46,319

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Solution

The fourth proportional to 80,309.09, 110,823.56 and 46,319 is: 63,918.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,309.09 : 110,823.56 = 46,319 : x
  2. Step 2: Convert to fraction form
    80,309.09/110,823.56 = 46,319/x
  3. Step 3: Cross multiply
    80,309.09x = 110,823.56 × 46,319
  4. Step 4: Simplify right side
    80,309.09x = 5,133,236,244.05
  5. Step 5: Solve for x
    x = 5,133,236,244.05/80,309.09
  6. Step 6: Final answer
    x = 63,918.50

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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.