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Finding the Fourth Proportional to 70,266.40, 96,976.56 and 46,087.72

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Solution

The fourth proportional to 70,266.40, 96,976.56 and 46,087.72 is: 63,606.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,266.40 : 96,976.56 = 46,087.72 : x
  2. Step 2: Convert to fraction form
    70,266.40/96,976.56 = 46,087.72/x
  3. Step 3: Cross multiply
    70,266.40x = 96,976.56 × 46,087.72
  4. Step 4: Simplify right side
    70,266.40x = 4,469,428,543.84
  5. Step 5: Solve for x
    x = 4,469,428,543.84/70,266.40
  6. Step 6: Final answer
    x = 63,606.91

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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.