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Finding the Fourth Proportional to 162,075.97, 223,655.73 and 90,460.61

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Solution

The fourth proportional to 162,075.97, 223,655.73 and 90,460.61 is: 124,830.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,075.97 : 223,655.73 = 90,460.61 : x
  2. Step 2: Convert to fraction form
    162,075.97/223,655.73 = 90,460.61/x
  3. Step 3: Cross multiply
    162,075.97x = 223,655.73 × 90,460.61
  4. Step 4: Simplify right side
    162,075.97x = 20,232,033,765.80
  5. Step 5: Solve for x
    x = 20,232,033,765.80/162,075.97
  6. Step 6: Final answer
    x = 124,830.56

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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.