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Finding the Fourth Proportional to 118,597.98, 163,672.47 and 68,313.18

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Solution

The fourth proportional to 118,597.98, 163,672.47 and 68,313.18 is: 94,276.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,597.98 : 163,672.47 = 68,313.18 : x
  2. Step 2: Convert to fraction form
    118,597.98/163,672.47 = 68,313.18/x
  3. Step 3: Cross multiply
    118,597.98x = 163,672.47 × 68,313.18
  4. Step 4: Simplify right side
    118,597.98x = 11,180,986,904.15
  5. Step 5: Solve for x
    x = 11,180,986,904.15/118,597.98
  6. Step 6: Final answer
    x = 94,276.37

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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.