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Finding the Fourth Proportional to 116,247.96, 160,386.84 and 68,483.88

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Solution

The fourth proportional to 116,247.96, 160,386.84 and 68,483.88 is: 94,486.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,247.96 : 160,386.84 = 68,483.88 : x
  2. Step 2: Convert to fraction form
    116,247.96/160,386.84 = 68,483.88/x
  3. Step 3: Cross multiply
    116,247.96x = 160,386.84 × 68,483.88
  4. Step 4: Simplify right side
    116,247.96x = 10,983,913,104.14
  5. Step 5: Solve for x
    x = 10,983,913,104.14/116,247.96
  6. Step 6: Final answer
    x = 94,486.93

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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.