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Finding the Fourth Proportional to 88,956, 122,788.44 and 63,878.40

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Solution

The fourth proportional to 88,956, 122,788.44 and 63,878.40 is: 88,173.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,956 : 122,788.44 = 63,878.40 : x
  2. Step 2: Convert to fraction form
    88,956/122,788.44 = 63,878.40/x
  3. Step 3: Cross multiply
    88,956x = 122,788.44 × 63,878.40
  4. Step 4: Simplify right side
    88,956x = 7,843,529,085.70
  5. Step 5: Solve for x
    x = 7,843,529,085.70/88,956
  6. Step 6: Final answer
    x = 88,173.13

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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.