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Finding the Fourth Proportional to 56,785.55, 78,363.06 and 32,914.44

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Solution

The fourth proportional to 56,785.55, 78,363.06 and 32,914.44 is: 45,421.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,785.55 : 78,363.06 = 32,914.44 : x
  2. Step 2: Convert to fraction form
    56,785.55/78,363.06 = 32,914.44/x
  3. Step 3: Cross multiply
    56,785.55x = 78,363.06 × 32,914.44
  4. Step 4: Simplify right side
    56,785.55x = 2,579,276,236.59
  5. Step 5: Solve for x
    x = 2,579,276,236.59/56,785.55
  6. Step 6: Final answer
    x = 45,421.35

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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.