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Finding the Fourth Proportional to 455,630.04, 683,463.42 and 156,140.87

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Solution

The fourth proportional to 455,630.04, 683,463.42 and 156,140.87 is: 234,217.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,630.04 : 683,463.42 = 156,140.87 : x
  2. Step 2: Convert to fraction form
    455,630.04/683,463.42 = 156,140.87/x
  3. Step 3: Cross multiply
    455,630.04x = 683,463.42 × 156,140.87
  4. Step 4: Simplify right side
    455,630.04x = 106,716,569,594.66
  5. Step 5: Solve for x
    x = 106,716,569,594.66/455,630.04
  6. Step 6: Final answer
    x = 234,217.59

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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.