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Finding the Fourth Proportional to 187,429.30, 280,706.55 and 183,670.90

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Solution

The fourth proportional to 187,429.30, 280,706.55 and 183,670.90 is: 275,077.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,429.30 : 280,706.55 = 183,670.90 : x
  2. Step 2: Convert to fraction form
    187,429.30/280,706.55 = 183,670.90/x
  3. Step 3: Cross multiply
    187,429.30x = 280,706.55 × 183,670.90
  4. Step 4: Simplify right side
    187,429.30x = 51,557,624,674.40
  5. Step 5: Solve for x
    x = 51,557,624,674.40/187,429.30
  6. Step 6: Final answer
    x = 275,077.72

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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.