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Finding the Fourth Proportional to 90,353.94, 135,655.04 and 46,010.49

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Solution

The fourth proportional to 90,353.94, 135,655.04 and 46,010.49 is: 69,078.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,353.94 : 135,655.04 = 46,010.49 : x
  2. Step 2: Convert to fraction form
    90,353.94/135,655.04 = 46,010.49/x
  3. Step 3: Cross multiply
    90,353.94x = 135,655.04 × 46,010.49
  4. Step 4: Simplify right side
    90,353.94x = 6,241,554,861.37
  5. Step 5: Solve for x
    x = 6,241,554,861.37/90,353.94
  6. Step 6: Final answer
    x = 69,078.95

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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.