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Finding the Fourth Proportional to 201,070.65, 301,605.78 and 51,310.94

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Solution

The fourth proportional to 201,070.65, 301,605.78 and 51,310.94 is: 76,966.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,070.65 : 301,605.78 = 51,310.94 : x
  2. Step 2: Convert to fraction form
    201,070.65/301,605.78 = 51,310.94/x
  3. Step 3: Cross multiply
    201,070.65x = 301,605.78 × 51,310.94
  4. Step 4: Simplify right side
    201,070.65x = 15,475,674,573.20
  5. Step 5: Solve for x
    x = 15,475,674,573.20/201,070.65
  6. Step 6: Final answer
    x = 76,966.35

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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.