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Finding the Fourth Proportional to 201,960,379.80, 302,940,569.70 and 177,018,082.20

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Solution

The fourth proportional to 201,960,379.80, 302,940,569.70 and 177,018,082.20 is: 265,527,123.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,960,379.80 : 302,940,569.70 = 177,018,082.20 : x
  2. Step 2: Convert to fraction form
    201,960,379.80/302,940,569.70 = 177,018,082.20/x
  3. Step 3: Cross multiply
    201,960,379.80x = 302,940,569.70 × 177,018,082.20
  4. Step 4: Simplify right side
    201,960,379.80x = 53,625,958,668,869,424
  5. Step 5: Solve for x
    x = 53,625,958,668,869,424/201,960,379.80
  6. Step 6: Final answer
    x = 265,527,123.30

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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.