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Finding the Fourth Proportional to 97,653.24, 134,765.10 and 55,209.24

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Solution

The fourth proportional to 97,653.24, 134,765.10 and 55,209.24 is: 76,190.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,653.24 : 134,765.10 = 55,209.24 : x
  2. Step 2: Convert to fraction form
    97,653.24/134,765.10 = 55,209.24/x
  3. Step 3: Cross multiply
    97,653.24x = 134,765.10 × 55,209.24
  4. Step 4: Simplify right side
    97,653.24x = 7,440,278,749.52
  5. Step 5: Solve for x
    x = 7,440,278,749.52/97,653.24
  6. Step 6: Final answer
    x = 76,190.80

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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.