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Finding the Fourth Proportional to 76,802.85, 105,987.69 and 44,965.40

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Solution

The fourth proportional to 76,802.85, 105,987.69 and 44,965.40 is: 62,052.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,802.85 : 105,987.69 = 44,965.40 : x
  2. Step 2: Convert to fraction form
    76,802.85/105,987.69 = 44,965.40/x
  3. Step 3: Cross multiply
    76,802.85x = 105,987.69 × 44,965.40
  4. Step 4: Simplify right side
    76,802.85x = 4,765,778,345.99
  5. Step 5: Solve for x
    x = 4,765,778,345.99/76,802.85
  6. Step 6: Final answer
    x = 62,052.10

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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.