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Finding the Fourth Proportional to 157,699.77, 236,619.09 and 82,802.49

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Solution

The fourth proportional to 157,699.77, 236,619.09 and 82,802.49 is: 124,240.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,699.77 : 236,619.09 = 82,802.49 : x
  2. Step 2: Convert to fraction form
    157,699.77/236,619.09 = 82,802.49/x
  3. Step 3: Cross multiply
    157,699.77x = 236,619.09 × 82,802.49
  4. Step 4: Simplify right side
    157,699.77x = 19,592,649,833.53
  5. Step 5: Solve for x
    x = 19,592,649,833.53/157,699.77
  6. Step 6: Final answer
    x = 124,240.19

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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.