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Finding the Fourth Proportional to 116,874.81, 161,287.29 and 63,159.81

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Solution

The fourth proportional to 116,874.81, 161,287.29 and 63,159.81 is: 87,160.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,874.81 : 161,287.29 = 63,159.81 : x
  2. Step 2: Convert to fraction form
    116,874.81/161,287.29 = 63,159.81/x
  3. Step 3: Cross multiply
    116,874.81x = 161,287.29 × 63,159.81
  4. Step 4: Simplify right side
    116,874.81x = 10,186,874,591.81
  5. Step 5: Solve for x
    x = 10,186,874,591.81/116,874.81
  6. Step 6: Final answer
    x = 87,160.57

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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.