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Finding the Fourth Proportional to 58,671.90, 87,840.12 and 54,947.61

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Solution

The fourth proportional to 58,671.90, 87,840.12 and 54,947.61 is: 82,264.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,671.90 : 87,840.12 = 54,947.61 : x
  2. Step 2: Convert to fraction form
    58,671.90/87,840.12 = 54,947.61/x
  3. Step 3: Cross multiply
    58,671.90x = 87,840.12 × 54,947.61
  4. Step 4: Simplify right side
    58,671.90x = 4,826,604,656.11
  5. Step 5: Solve for x
    x = 4,826,604,656.11/58,671.90
  6. Step 6: Final answer
    x = 82,264.33

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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.