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Finding the Fourth Proportional to 181,212.66, 250,157.16 and 108,649.89

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Solution

The fourth proportional to 181,212.66, 250,157.16 and 108,649.89 is: 149,987.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,212.66 : 250,157.16 = 108,649.89 : x
  2. Step 2: Convert to fraction form
    181,212.66/250,157.16 = 108,649.89/x
  3. Step 3: Cross multiply
    181,212.66x = 250,157.16 × 108,649.89
  4. Step 4: Simplify right side
    181,212.66x = 27,179,547,916.71
  5. Step 5: Solve for x
    x = 27,179,547,916.71/181,212.66
  6. Step 6: Final answer
    x = 149,987.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.