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Finding the Fourth Proportional to 116,326.48, 160,489.65 and 76,063.81

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Solution

The fourth proportional to 116,326.48, 160,489.65 and 76,063.81 is: 104,941.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,326.48 : 160,489.65 = 76,063.81 : x
  2. Step 2: Convert to fraction form
    116,326.48/160,489.65 = 76,063.81/x
  3. Step 3: Cross multiply
    116,326.48x = 160,489.65 × 76,063.81
  4. Step 4: Simplify right side
    116,326.48x = 12,207,454,244.57
  5. Step 5: Solve for x
    x = 12,207,454,244.57/116,326.48
  6. Step 6: Final answer
    x = 104,941.32

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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.