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Finding the Fourth Proportional to 170,431.98, 235,197.72 and 93,954.01

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Solution

The fourth proportional to 170,431.98, 235,197.72 and 93,954.01 is: 129,657.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,431.98 : 235,197.72 = 93,954.01 : x
  2. Step 2: Convert to fraction form
    170,431.98/235,197.72 = 93,954.01/x
  3. Step 3: Cross multiply
    170,431.98x = 235,197.72 × 93,954.01
  4. Step 4: Simplify right side
    170,431.98x = 22,097,768,936.86
  5. Step 5: Solve for x
    x = 22,097,768,936.86/170,431.98
  6. Step 6: Final answer
    x = 129,657.41

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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.