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Finding the Fourth Proportional to 88,702.25, 122,414.10 and 50,978.93

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Solution

The fourth proportional to 88,702.25, 122,414.10 and 50,978.93 is: 70,353.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,702.25 : 122,414.10 = 50,978.93 : x
  2. Step 2: Convert to fraction form
    88,702.25/122,414.10 = 50,978.93/x
  3. Step 3: Cross multiply
    88,702.25x = 122,414.10 × 50,978.93
  4. Step 4: Simplify right side
    88,702.25x = 6,240,539,834.91
  5. Step 5: Solve for x
    x = 6,240,539,834.91/88,702.25
  6. Step 6: Final answer
    x = 70,353.79

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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.