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Finding the Fourth Proportional to 100,593.60, 150,890.40 and 99,038.40

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Solution

The fourth proportional to 100,593.60, 150,890.40 and 99,038.40 is: 148,557.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,593.60 : 150,890.40 = 99,038.40 : x
  2. Step 2: Convert to fraction form
    100,593.60/150,890.40 = 99,038.40/x
  3. Step 3: Cross multiply
    100,593.60x = 150,890.40 × 99,038.40
  4. Step 4: Simplify right side
    100,593.60x = 14,943,943,791.36
  5. Step 5: Solve for x
    x = 14,943,943,791.36/100,593.60
  6. Step 6: Final answer
    x = 148,557.60

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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.