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Finding the Fourth Proportional to 88,745.85, 122,400.05 and 56,917.17

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Solution

The fourth proportional to 88,745.85, 122,400.05 and 56,917.17 is: 78,501.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,745.85 : 122,400.05 = 56,917.17 : x
  2. Step 2: Convert to fraction form
    88,745.85/122,400.05 = 56,917.17/x
  3. Step 3: Cross multiply
    88,745.85x = 122,400.05 × 56,917.17
  4. Step 4: Simplify right side
    88,745.85x = 6,966,664,169.27
  5. Step 5: Solve for x
    x = 6,966,664,169.27/88,745.85
  6. Step 6: Final answer
    x = 78,501.30

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1.5x scale

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.