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Finding the Fourth Proportional to 293,111.80, 439,667.70 and 188,049.40

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Solution

The fourth proportional to 293,111.80, 439,667.70 and 188,049.40 is: 282,074.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,111.80 : 439,667.70 = 188,049.40 : x
  2. Step 2: Convert to fraction form
    293,111.80/439,667.70 = 188,049.40/x
  3. Step 3: Cross multiply
    293,111.80x = 439,667.70 × 188,049.40
  4. Step 4: Simplify right side
    293,111.80x = 82,679,247,184.38
  5. Step 5: Solve for x
    x = 82,679,247,184.38/293,111.80
  6. Step 6: Final answer
    x = 282,074.10

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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.