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Finding the Fourth Proportional to 81,627.96, 112,617.64 and 53,350.04

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Solution

The fourth proportional to 81,627.96, 112,617.64 and 53,350.04 is: 73,604.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,627.96 : 112,617.64 = 53,350.04 : x
  2. Step 2: Convert to fraction form
    81,627.96/112,617.64 = 53,350.04/x
  3. Step 3: Cross multiply
    81,627.96x = 112,617.64 × 53,350.04
  4. Step 4: Simplify right side
    81,627.96x = 6,008,155,598.71
  5. Step 5: Solve for x
    x = 6,008,155,598.71/81,627.96
  6. Step 6: Final answer
    x = 73,604.14

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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.