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Finding the Fourth Proportional to 169,049, 253,478.64 and 115,801.16

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Solution

The fourth proportional to 169,049, 253,478.64 and 115,801.16 is: 173,636.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,049 : 253,478.64 = 115,801.16 : x
  2. Step 2: Convert to fraction form
    169,049/253,478.64 = 115,801.16/x
  3. Step 3: Cross multiply
    169,049x = 253,478.64 × 115,801.16
  4. Step 4: Simplify right side
    169,049x = 29,353,120,547.22
  5. Step 5: Solve for x
    x = 29,353,120,547.22/169,049
  6. Step 6: Final answer
    x = 173,636.76

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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.