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Finding the Fourth Proportional to 76,657.59, 105,774.93 and 44,380.71

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Solution

The fourth proportional to 76,657.59, 105,774.93 and 44,380.71 is: 61,238.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,657.59 : 105,774.93 = 44,380.71 : x
  2. Step 2: Convert to fraction form
    76,657.59/105,774.93 = 44,380.71/x
  3. Step 3: Cross multiply
    76,657.59x = 105,774.93 × 44,380.71
  4. Step 4: Simplify right side
    76,657.59x = 4,694,366,493.60
  5. Step 5: Solve for x
    x = 4,694,366,493.60/76,657.59
  6. Step 6: Final answer
    x = 61,238.12

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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.