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Finding the Fourth Proportional to 223,553.60, 335,038.80 and 90,324.80

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Solution

The fourth proportional to 223,553.60, 335,038.80 and 90,324.80 is: 135,369.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,553.60 : 335,038.80 = 90,324.80 : x
  2. Step 2: Convert to fraction form
    223,553.60/335,038.80 = 90,324.80/x
  3. Step 3: Cross multiply
    223,553.60x = 335,038.80 × 90,324.80
  4. Step 4: Simplify right side
    223,553.60x = 30,262,312,602.24
  5. Step 5: Solve for x
    x = 30,262,312,602.24/223,553.60
  6. Step 6: Final answer
    x = 135,369.38

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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.