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Finding the Fourth Proportional to 116,350.63, 160,552.53 and 65,351.81

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Solution

The fourth proportional to 116,350.63, 160,552.53 and 65,351.81 is: 90,179.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,350.63 : 160,552.53 = 65,351.81 : x
  2. Step 2: Convert to fraction form
    116,350.63/160,552.53 = 65,351.81/x
  3. Step 3: Cross multiply
    116,350.63x = 160,552.53 × 65,351.81
  4. Step 4: Simplify right side
    116,350.63x = 10,492,398,836.96
  5. Step 5: Solve for x
    x = 10,492,398,836.96/116,350.63
  6. Step 6: Final answer
    x = 90,179.13

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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.