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Finding the Fourth Proportional to 116,818.47, 175,301.51 and 66,995.87

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Solution

The fourth proportional to 116,818.47, 175,301.51 and 66,995.87 is: 100,536.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,818.47 : 175,301.51 = 66,995.87 : x
  2. Step 2: Convert to fraction form
    116,818.47/175,301.51 = 66,995.87/x
  3. Step 3: Cross multiply
    116,818.47x = 175,301.51 × 66,995.87
  4. Step 4: Simplify right side
    116,818.47x = 11,744,475,963.28
  5. Step 5: Solve for x
    x = 11,744,475,963.28/116,818.47
  6. Step 6: Final answer
    x = 100,536.12

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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.