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Finding the Fourth Proportional to 117,597.48, 162,290.16 and 72,277.44

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Solution

The fourth proportional to 117,597.48, 162,290.16 and 72,277.44 is: 99,746.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,597.48 : 162,290.16 = 72,277.44 : x
  2. Step 2: Convert to fraction form
    117,597.48/162,290.16 = 72,277.44/x
  3. Step 3: Cross multiply
    117,597.48x = 162,290.16 × 72,277.44
  4. Step 4: Simplify right side
    117,597.48x = 11,729,917,301.99
  5. Step 5: Solve for x
    x = 11,729,917,301.99/117,597.48
  6. Step 6: Final answer
    x = 99,746.33

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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.