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Finding the Fourth Proportional to 98,561.56, 136,014.96 and 53,849.56

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Solution

The fourth proportional to 98,561.56, 136,014.96 and 53,849.56 is: 74,312.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,561.56 : 136,014.96 = 53,849.56 : x
  2. Step 2: Convert to fraction form
    98,561.56/136,014.96 = 53,849.56/x
  3. Step 3: Cross multiply
    98,561.56x = 136,014.96 × 53,849.56
  4. Step 4: Simplify right side
    98,561.56x = 7,324,345,749.42
  5. Step 5: Solve for x
    x = 7,324,345,749.42/98,561.56
  6. Step 6: Final answer
    x = 74,312.40

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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.