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Finding the Fourth Proportional to 169,381.83, 254,072.55 and 51,053.16

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Solution

The fourth proportional to 169,381.83, 254,072.55 and 51,053.16 is: 76,579.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,381.83 : 254,072.55 = 51,053.16 : x
  2. Step 2: Convert to fraction form
    169,381.83/254,072.55 = 51,053.16/x
  3. Step 3: Cross multiply
    169,381.83x = 254,072.55 × 51,053.16
  4. Step 4: Simplify right side
    169,381.83x = 12,971,206,689.23
  5. Step 5: Solve for x
    x = 12,971,206,689.23/169,381.83
  6. Step 6: Final answer
    x = 76,579.68

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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.