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Finding the Fourth Proportional to 193,643.80, 290,427.30 and 93,803.80

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Solution

The fourth proportional to 193,643.80, 290,427.30 and 93,803.80 is: 140,687.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,643.80 : 290,427.30 = 93,803.80 : x
  2. Step 2: Convert to fraction form
    193,643.80/290,427.30 = 93,803.80/x
  3. Step 3: Cross multiply
    193,643.80x = 290,427.30 × 93,803.80
  4. Step 4: Simplify right side
    193,643.80x = 27,243,184,363.74
  5. Step 5: Solve for x
    x = 27,243,184,363.74/193,643.80
  6. Step 6: Final answer
    x = 140,687.10

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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.