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Finding the Fourth Proportional to 76,788.88, 105,968.88 and 44,529.76

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Solution

The fourth proportional to 76,788.88, 105,968.88 and 44,529.76 is: 61,451.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,788.88 : 105,968.88 = 44,529.76 : x
  2. Step 2: Convert to fraction form
    76,788.88/105,968.88 = 44,529.76/x
  3. Step 3: Cross multiply
    76,788.88x = 105,968.88 × 44,529.76
  4. Step 4: Simplify right side
    76,788.88x = 4,718,768,793.87
  5. Step 5: Solve for x
    x = 4,718,768,793.87/76,788.88
  6. Step 6: Final answer
    x = 61,451.20

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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.