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Finding the Fourth Proportional to 98,842.67, 136,402.97 and 53,520.68

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Solution

The fourth proportional to 98,842.67, 136,402.97 and 53,520.68 is: 73,858.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,842.67 : 136,402.97 = 53,520.68 : x
  2. Step 2: Convert to fraction form
    98,842.67/136,402.97 = 53,520.68/x
  3. Step 3: Cross multiply
    98,842.67x = 136,402.97 × 53,520.68
  4. Step 4: Simplify right side
    98,842.67x = 7,300,379,708.42
  5. Step 5: Solve for x
    x = 7,300,379,708.42/98,842.67
  6. Step 6: Final answer
    x = 73,858.58

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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.