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Finding the Fourth Proportional to 330,314.94, 495,491.22 and 93,639

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Solution

The fourth proportional to 330,314.94, 495,491.22 and 93,639 is: 140,463.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,314.94 : 495,491.22 = 93,639 : x
  2. Step 2: Convert to fraction form
    330,314.94/495,491.22 = 93,639/x
  3. Step 3: Cross multiply
    330,314.94x = 495,491.22 × 93,639
  4. Step 4: Simplify right side
    330,314.94x = 46,397,302,349.58
  5. Step 5: Solve for x
    x = 46,397,302,349.58/330,314.94
  6. Step 6: Final answer
    x = 140,463.83

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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.