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Finding the Fourth Proportional to 151,573.66, 209,172.98 and 83,593.32

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Solution

The fourth proportional to 151,573.66, 209,172.98 and 83,593.32 is: 115,359.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,573.66 : 209,172.98 = 83,593.32 : x
  2. Step 2: Convert to fraction form
    151,573.66/209,172.98 = 83,593.32/x
  3. Step 3: Cross multiply
    151,573.66x = 209,172.98 × 83,593.32
  4. Step 4: Simplify right side
    151,573.66x = 17,485,463,852.49
  5. Step 5: Solve for x
    x = 17,485,463,852.49/151,573.66
  6. Step 6: Final answer
    x = 115,359.51

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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.