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Finding the Fourth Proportional to 206,314.99, 309,473.55 and 93,916.60

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Solution

The fourth proportional to 206,314.99, 309,473.55 and 93,916.60 is: 140,875.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,314.99 : 309,473.55 = 93,916.60 : x
  2. Step 2: Convert to fraction form
    206,314.99/309,473.55 = 93,916.60/x
  3. Step 3: Cross multiply
    206,314.99x = 309,473.55 × 93,916.60
  4. Step 4: Simplify right side
    206,314.99x = 29,064,703,605.93
  5. Step 5: Solve for x
    x = 29,064,703,605.93/206,314.99
  6. Step 6: Final answer
    x = 140,875.38

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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.