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Finding the Fourth Proportional to 255,916.58, 353,166.11 and 141,195.21

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Solution

The fourth proportional to 255,916.58, 353,166.11 and 141,195.21 is: 194,850.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,916.58 : 353,166.11 = 141,195.21 : x
  2. Step 2: Convert to fraction form
    255,916.58/353,166.11 = 141,195.21/x
  3. Step 3: Cross multiply
    255,916.58x = 353,166.11 × 141,195.21
  4. Step 4: Simplify right side
    255,916.58x = 49,865,363,684.73
  5. Step 5: Solve for x
    x = 49,865,363,684.73/255,916.58
  6. Step 6: Final answer
    x = 194,850.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.