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Finding the Fourth Proportional to 356,019.60, 534,643.80 and 190,131.60

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Solution

The fourth proportional to 356,019.60, 534,643.80 and 190,131.60 is: 285,525.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,019.60 : 534,643.80 = 190,131.60 : x
  2. Step 2: Convert to fraction form
    356,019.60/534,643.80 = 190,131.60/x
  3. Step 3: Cross multiply
    356,019.60x = 534,643.80 × 190,131.60
  4. Step 4: Simplify right side
    356,019.60x = 101,652,681,124.08
  5. Step 5: Solve for x
    x = 101,652,681,124.08/356,019.60
  6. Step 6: Final answer
    x = 285,525.52

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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.