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Finding the Fourth Proportional to 76,695.16, 114,864.36 and 74,034.36

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Solution

The fourth proportional to 76,695.16, 114,864.36 and 74,034.36 is: 110,879.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,695.16 : 114,864.36 = 74,034.36 : x
  2. Step 2: Convert to fraction form
    76,695.16/114,864.36 = 74,034.36/x
  3. Step 3: Cross multiply
    76,695.16x = 114,864.36 × 74,034.36
  4. Step 4: Simplify right side
    76,695.16x = 8,503,909,689.13
  5. Step 5: Solve for x
    x = 8,503,909,689.13/76,695.16
  6. Step 6: Final answer
    x = 110,879.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.