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Finding the Fourth Proportional to 144,295.75, 216,437.47 and 140,916.83

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Solution

The fourth proportional to 144,295.75, 216,437.47 and 140,916.83 is: 211,369.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,295.75 : 216,437.47 = 140,916.83 : x
  2. Step 2: Convert to fraction form
    144,295.75/216,437.47 = 140,916.83/x
  3. Step 3: Cross multiply
    144,295.75x = 216,437.47 × 140,916.83
  4. Step 4: Simplify right side
    144,295.75x = 30,499,682,165.62
  5. Step 5: Solve for x
    x = 30,499,682,165.62/144,295.75
  6. Step 6: Final answer
    x = 211,369.23

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1.5x scale

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.