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Finding the Fourth Proportional to 58,245.74, 87,240.54 and 48,135.90

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Solution

The fourth proportional to 58,245.74, 87,240.54 and 48,135.90 is: 72,098.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,245.74 : 87,240.54 = 48,135.90 : x
  2. Step 2: Convert to fraction form
    58,245.74/87,240.54 = 48,135.90/x
  3. Step 3: Cross multiply
    58,245.74x = 87,240.54 × 48,135.90
  4. Step 4: Simplify right side
    58,245.74x = 4,199,401,909.39
  5. Step 5: Solve for x
    x = 4,199,401,909.39/58,245.74
  6. Step 6: Final answer
    x = 72,098.02

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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.