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Finding the Fourth Proportional to 201,087.93, 301,631.62 and 51,328.20

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Solution

The fourth proportional to 201,087.93, 301,631.62 and 51,328.20 is: 76,992.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,087.93 : 301,631.62 = 51,328.20 : x
  2. Step 2: Convert to fraction form
    201,087.93/301,631.62 = 51,328.20/x
  3. Step 3: Cross multiply
    201,087.93x = 301,631.62 × 51,328.20
  4. Step 4: Simplify right side
    201,087.93x = 15,482,208,117.68
  5. Step 5: Solve for x
    x = 15,482,208,117.68/201,087.93
  6. Step 6: Final answer
    x = 76,992.23

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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.