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Finding the Fourth Proportional to 74,668.55, 103,042.60 and 41,134.55

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Solution

The fourth proportional to 74,668.55, 103,042.60 and 41,134.55 is: 56,765.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,668.55 : 103,042.60 = 41,134.55 : x
  2. Step 2: Convert to fraction form
    74,668.55/103,042.60 = 41,134.55/x
  3. Step 3: Cross multiply
    74,668.55x = 103,042.60 × 41,134.55
  4. Step 4: Simplify right side
    74,668.55x = 4,238,610,776.16
  5. Step 5: Solve for x
    x = 4,238,610,776.16/74,668.55
  6. Step 6: Final answer
    x = 56,765.68

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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.