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Finding the Fourth Proportional to 100,537.40, 150,921.30 and 59,007.80

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Solution

The fourth proportional to 100,537.40, 150,921.30 and 59,007.80 is: 88,579.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,537.40 : 150,921.30 = 59,007.80 : x
  2. Step 2: Convert to fraction form
    100,537.40/150,921.30 = 59,007.80/x
  3. Step 3: Cross multiply
    100,537.40x = 150,921.30 × 59,007.80
  4. Step 4: Simplify right side
    100,537.40x = 8,905,533,886.14
  5. Step 5: Solve for x
    x = 8,905,533,886.14/100,537.40
  6. Step 6: Final answer
    x = 88,579.31

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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.