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Finding the Fourth Proportional to 109,482.89, 151,090.65 and 61,735.23

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Solution

The fourth proportional to 109,482.89, 151,090.65 and 61,735.23 is: 85,197.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,482.89 : 151,090.65 = 61,735.23 : x
  2. Step 2: Convert to fraction form
    109,482.89/151,090.65 = 61,735.23/x
  3. Step 3: Cross multiply
    109,482.89x = 151,090.65 × 61,735.23
  4. Step 4: Simplify right side
    109,482.89x = 9,327,616,028.60
  5. Step 5: Solve for x
    x = 9,327,616,028.60/109,482.89
  6. Step 6: Final answer
    x = 85,197.02

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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.