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Finding the Fourth Proportional to 163,075.82, 225,008.69 and 157,699.89

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Solution

The fourth proportional to 163,075.82, 225,008.69 and 157,699.89 is: 217,591.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,075.82 : 225,008.69 = 157,699.89 : x
  2. Step 2: Convert to fraction form
    163,075.82/225,008.69 = 157,699.89/x
  3. Step 3: Cross multiply
    163,075.82x = 225,008.69 × 157,699.89
  4. Step 4: Simplify right side
    163,075.82x = 35,483,844,873.54
  5. Step 5: Solve for x
    x = 35,483,844,873.54/163,075.82
  6. Step 6: Final answer
    x = 217,591.09

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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.