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Finding the Fourth Proportional to 88,702.12, 122,405.86 and 52,873.68

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Solution

The fourth proportional to 88,702.12, 122,405.86 and 52,873.68 is: 72,963.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,702.12 : 122,405.86 = 52,873.68 : x
  2. Step 2: Convert to fraction form
    88,702.12/122,405.86 = 52,873.68/x
  3. Step 3: Cross multiply
    88,702.12x = 122,405.86 × 52,873.68
  4. Step 4: Simplify right side
    88,702.12x = 6,472,048,271.76
  5. Step 5: Solve for x
    x = 6,472,048,271.76/88,702.12
  6. Step 6: Final answer
    x = 72,963.85

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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.