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Finding the Fourth Proportional to 74,907.98, 103,371.21 and 43,076.18

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Solution

The fourth proportional to 74,907.98, 103,371.21 and 43,076.18 is: 59,444.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,907.98 : 103,371.21 = 43,076.18 : x
  2. Step 2: Convert to fraction form
    74,907.98/103,371.21 = 43,076.18/x
  3. Step 3: Cross multiply
    74,907.98x = 103,371.21 × 43,076.18
  4. Step 4: Simplify right side
    74,907.98x = 4,452,836,848.78
  5. Step 5: Solve for x
    x = 4,452,836,848.78/74,907.98
  6. Step 6: Final answer
    x = 59,444.09

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1.5x scale

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.