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Finding the Fourth Proportional to 58,274.64, 87,311.52 and 45,874.08

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Solution

The fourth proportional to 58,274.64, 87,311.52 and 45,874.08 is: 68,732.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,274.64 : 87,311.52 = 45,874.08 : x
  2. Step 2: Convert to fraction form
    58,274.64/87,311.52 = 45,874.08/x
  3. Step 3: Cross multiply
    58,274.64x = 87,311.52 × 45,874.08
  4. Step 4: Simplify right side
    58,274.64x = 4,005,335,653.40
  5. Step 5: Solve for x
    x = 4,005,335,653.40/58,274.64
  6. Step 6: Final answer
    x = 68,732.05

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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.