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Finding the Fourth Proportional to 109,608.75, 151,260.21 and 59,307.75

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Solution

The fourth proportional to 109,608.75, 151,260.21 and 59,307.75 is: 81,844.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,608.75 : 151,260.21 = 59,307.75 : x
  2. Step 2: Convert to fraction form
    109,608.75/151,260.21 = 59,307.75/x
  3. Step 3: Cross multiply
    109,608.75x = 151,260.21 × 59,307.75
  4. Step 4: Simplify right side
    109,608.75x = 8,970,902,719.63
  5. Step 5: Solve for x
    x = 8,970,902,719.63/109,608.75
  6. Step 6: Final answer
    x = 81,844.77

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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.