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Finding the Fourth Proportional to 70,090.55, 96,724.29 and 43,222.31

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Solution

The fourth proportional to 70,090.55, 96,724.29 and 43,222.31 is: 59,646.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,090.55 : 96,724.29 = 43,222.31 : x
  2. Step 2: Convert to fraction form
    70,090.55/96,724.29 = 43,222.31/x
  3. Step 3: Cross multiply
    70,090.55x = 96,724.29 × 43,222.31
  4. Step 4: Simplify right side
    70,090.55x = 4,180,646,763.29
  5. Step 5: Solve for x
    x = 4,180,646,763.29/70,090.55
  6. Step 6: Final answer
    x = 59,646.37

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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.