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Finding the Fourth Proportional to 86,477.55, 129,481.83 and 44,837.07

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Solution

The fourth proportional to 86,477.55, 129,481.83 and 44,837.07 is: 67,134.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,477.55 : 129,481.83 = 44,837.07 : x
  2. Step 2: Convert to fraction form
    86,477.55/129,481.83 = 44,837.07/x
  3. Step 3: Cross multiply
    86,477.55x = 129,481.83 × 44,837.07
  4. Step 4: Simplify right side
    86,477.55x = 5,805,585,875.44
  5. Step 5: Solve for x
    x = 5,805,585,875.44/86,477.55
  6. Step 6: Final answer
    x = 67,134.02

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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.