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Finding the Fourth Proportional to 76,632.80, 105,732.60 and 44,809.52

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Solution

The fourth proportional to 76,632.80, 105,732.60 and 44,809.52 is: 61,825.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,632.80 : 105,732.60 = 44,809.52 : x
  2. Step 2: Convert to fraction form
    76,632.80/105,732.60 = 44,809.52/x
  3. Step 3: Cross multiply
    76,632.80x = 105,732.60 × 44,809.52
  4. Step 4: Simplify right side
    76,632.80x = 4,737,827,054.35
  5. Step 5: Solve for x
    x = 4,737,827,054.35/76,632.80
  6. Step 6: Final answer
    x = 61,825.05

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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.