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Finding the Fourth Proportional to 97,513.96, 134,571.92 and 55,078.80

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Solution

The fourth proportional to 97,513.96, 134,571.92 and 55,078.80 is: 76,010.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,513.96 : 134,571.92 = 55,078.80 : x
  2. Step 2: Convert to fraction form
    97,513.96/134,571.92 = 55,078.80/x
  3. Step 3: Cross multiply
    97,513.96x = 134,571.92 × 55,078.80
  4. Step 4: Simplify right side
    97,513.96x = 7,412,059,867.30
  5. Step 5: Solve for x
    x = 7,412,059,867.30/97,513.96
  6. Step 6: Final answer
    x = 76,010.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.