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Finding the Fourth Proportional to 117,825.79, 176,746.89 and 38,995.37

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Solution

The fourth proportional to 117,825.79, 176,746.89 and 38,995.37 is: 58,495.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,825.79 : 176,746.89 = 38,995.37 : x
  2. Step 2: Convert to fraction form
    117,825.79/176,746.89 = 38,995.37/x
  3. Step 3: Cross multiply
    117,825.79x = 176,746.89 × 38,995.37
  4. Step 4: Simplify right side
    117,825.79x = 6,892,310,962.38
  5. Step 5: Solve for x
    x = 6,892,310,962.38/117,825.79
  6. Step 6: Final answer
    x = 58,495.78

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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.