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Finding the Fourth Proportional to 99,563.80, 149,345.70 and 37,226.20

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Solution

The fourth proportional to 99,563.80, 149,345.70 and 37,226.20 is: 55,839.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,563.80 : 149,345.70 = 37,226.20 : x
  2. Step 2: Convert to fraction form
    99,563.80/149,345.70 = 37,226.20/x
  3. Step 3: Cross multiply
    99,563.80x = 149,345.70 × 37,226.20
  4. Step 4: Simplify right side
    99,563.80x = 5,559,572,897.34
  5. Step 5: Solve for x
    x = 5,559,572,897.34/99,563.80
  6. Step 6: Final answer
    x = 55,839.30

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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.