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Finding the Fourth Proportional to 335,989.32, 503,971.38 and 83,270.64

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Solution

The fourth proportional to 335,989.32, 503,971.38 and 83,270.64 is: 124,902.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,989.32 : 503,971.38 = 83,270.64 : x
  2. Step 2: Convert to fraction form
    335,989.32/503,971.38 = 83,270.64/x
  3. Step 3: Cross multiply
    335,989.32x = 503,971.38 × 83,270.64
  4. Step 4: Simplify right side
    335,989.32x = 41,966,019,354.28
  5. Step 5: Solve for x
    x = 41,966,019,354.28/335,989.32
  6. Step 6: Final answer
    x = 124,902.84

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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.