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Finding the Fourth Proportional to 71,608.58, 98,808.84 and 41,388.06

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Solution

The fourth proportional to 71,608.58, 98,808.84 and 41,388.06 is: 57,109.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,608.58 : 98,808.84 = 41,388.06 : x
  2. Step 2: Convert to fraction form
    71,608.58/98,808.84 = 41,388.06/x
  3. Step 3: Cross multiply
    71,608.58x = 98,808.84 × 41,388.06
  4. Step 4: Simplify right side
    71,608.58x = 4,089,506,452.58
  5. Step 5: Solve for x
    x = 4,089,506,452.58/71,608.58
  6. Step 6: Final answer
    x = 57,109.17

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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.