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Finding the Fourth Proportional to 88,603.92, 122,276.34 and 48,321

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Solution

The fourth proportional to 88,603.92, 122,276.34 and 48,321 is: 66,684.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,603.92 : 122,276.34 = 48,321 : x
  2. Step 2: Convert to fraction form
    88,603.92/122,276.34 = 48,321/x
  3. Step 3: Cross multiply
    88,603.92x = 122,276.34 × 48,321
  4. Step 4: Simplify right side
    88,603.92x = 5,908,515,025.14
  5. Step 5: Solve for x
    x = 5,908,515,025.14/88,603.92
  6. Step 6: Final answer
    x = 66,684.58

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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.