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Finding the Fourth Proportional to 94,361.32, 130,218.60 and 51,918.94

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Solution

The fourth proportional to 94,361.32, 130,218.60 and 51,918.94 is: 71,648.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,361.32 : 130,218.60 = 51,918.94 : x
  2. Step 2: Convert to fraction form
    94,361.32/130,218.60 = 51,918.94/x
  3. Step 3: Cross multiply
    94,361.32x = 130,218.60 × 51,918.94
  4. Step 4: Simplify right side
    94,361.32x = 6,760,811,680.28
  5. Step 5: Solve for x
    x = 6,760,811,680.28/94,361.32
  6. Step 6: Final answer
    x = 71,648.13

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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.