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Finding the Fourth Proportional to 109,391.06, 150,959.80 and 59,090.06

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Solution

The fourth proportional to 109,391.06, 150,959.80 and 59,090.06 is: 81,544.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,391.06 : 150,959.80 = 59,090.06 : x
  2. Step 2: Convert to fraction form
    109,391.06/150,959.80 = 59,090.06/x
  3. Step 3: Cross multiply
    109,391.06x = 150,959.80 × 59,090.06
  4. Step 4: Simplify right side
    109,391.06x = 8,920,224,090.85
  5. Step 5: Solve for x
    x = 8,920,224,090.85/109,391.06
  6. Step 6: Final answer
    x = 81,544.36

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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.