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Finding the Fourth Proportional to 103,809.33, 143,246.64 and 58,495.38

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Solution

The fourth proportional to 103,809.33, 143,246.64 and 58,495.38 is: 80,717.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,809.33 : 143,246.64 = 58,495.38 : x
  2. Step 2: Convert to fraction form
    103,809.33/143,246.64 = 58,495.38/x
  3. Step 3: Cross multiply
    103,809.33x = 143,246.64 × 58,495.38
  4. Step 4: Simplify right side
    103,809.33x = 8,379,266,640.52
  5. Step 5: Solve for x
    x = 8,379,266,640.52/103,809.33
  6. Step 6: Final answer
    x = 80,717.86

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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.