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Finding the Fourth Proportional to 356,513.50, 534,771.46 and 90,273.89

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Solution

The fourth proportional to 356,513.50, 534,771.46 and 90,273.89 is: 135,411.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,513.50 : 534,771.46 = 90,273.89 : x
  2. Step 2: Convert to fraction form
    356,513.50/534,771.46 = 90,273.89/x
  3. Step 3: Cross multiply
    356,513.50x = 534,771.46 × 90,273.89
  4. Step 4: Simplify right side
    356,513.50x = 48,275,899,955.18
  5. Step 5: Solve for x
    x = 48,275,899,955.18/356,513.50
  6. Step 6: Final answer
    x = 135,411.14

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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.