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Finding the Fourth Proportional to 102,682.60, 154,023.90 and 58,445.80

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Solution

The fourth proportional to 102,682.60, 154,023.90 and 58,445.80 is: 87,668.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,682.60 : 154,023.90 = 58,445.80 : x
  2. Step 2: Convert to fraction form
    102,682.60/154,023.90 = 58,445.80/x
  3. Step 3: Cross multiply
    102,682.60x = 154,023.90 × 58,445.80
  4. Step 4: Simplify right side
    102,682.60x = 9,002,050,054.62
  5. Step 5: Solve for x
    x = 9,002,050,054.62/102,682.60
  6. Step 6: Final answer
    x = 87,668.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.