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Finding the Fourth Proportional to 45,457.56, 68,080.44 and 43,881.12

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Solution

The fourth proportional to 45,457.56, 68,080.44 and 43,881.12 is: 65,719.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,457.56 : 68,080.44 = 43,881.12 : x
  2. Step 2: Convert to fraction form
    45,457.56/68,080.44 = 43,881.12/x
  3. Step 3: Cross multiply
    45,457.56x = 68,080.44 × 43,881.12
  4. Step 4: Simplify right side
    45,457.56x = 2,987,445,957.29
  5. Step 5: Solve for x
    x = 2,987,445,957.29/45,457.56
  6. Step 6: Final answer
    x = 65,719.45

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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.