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Finding the Fourth Proportional to 70,753.85, 97,573.30 and 45,268.28

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Solution

The fourth proportional to 70,753.85, 97,573.30 and 45,268.28 is: 62,427.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,753.85 : 97,573.30 = 45,268.28 : x
  2. Step 2: Convert to fraction form
    70,753.85/97,573.30 = 45,268.28/x
  3. Step 3: Cross multiply
    70,753.85x = 97,573.30 × 45,268.28
  4. Step 4: Simplify right side
    70,753.85x = 4,416,975,464.92
  5. Step 5: Solve for x
    x = 4,416,975,464.92/70,753.85
  6. Step 6: Final answer
    x = 62,427.35

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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.