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Finding the Fourth Proportional to 371,465.36, 557,199.48 and 90,982.64

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Solution

The fourth proportional to 371,465.36, 557,199.48 and 90,982.64 is: 136,474.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,465.36 : 557,199.48 = 90,982.64 : x
  2. Step 2: Convert to fraction form
    371,465.36/557,199.48 = 90,982.64/x
  3. Step 3: Cross multiply
    371,465.36x = 557,199.48 × 90,982.64
  4. Step 4: Simplify right side
    371,465.36x = 50,695,479,697.03
  5. Step 5: Solve for x
    x = 50,695,479,697.03/371,465.36
  6. Step 6: Final answer
    x = 136,474.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.