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Finding the Fourth Proportional to 76,703.85, 105,843.69 and 44,866.53

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Solution

The fourth proportional to 76,703.85, 105,843.69 and 44,866.53 is: 61,911.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,703.85 : 105,843.69 = 44,866.53 : x
  2. Step 2: Convert to fraction form
    76,703.85/105,843.69 = 44,866.53/x
  3. Step 3: Cross multiply
    76,703.85x = 105,843.69 × 44,866.53
  4. Step 4: Simplify right side
    76,703.85x = 4,748,839,092.70
  5. Step 5: Solve for x
    x = 4,748,839,092.70/76,703.85
  6. Step 6: Final answer
    x = 61,911.35

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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.