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Finding the Fourth Proportional to 58,068, 80,135.46 and 32,919.12

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Solution

The fourth proportional to 58,068, 80,135.46 and 32,919.12 is: 45,429.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,068 : 80,135.46 = 32,919.12 : x
  2. Step 2: Convert to fraction form
    58,068/80,135.46 = 32,919.12/x
  3. Step 3: Cross multiply
    58,068x = 80,135.46 × 32,919.12
  4. Step 4: Simplify right side
    58,068x = 2,637,988,824.00
  5. Step 5: Solve for x
    x = 2,637,988,824.00/58,068
  6. Step 6: Final answer
    x = 45,429.30

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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.