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Finding the Fourth Proportional to 100,673.65, 151,107.68 and 61,307.65

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Solution

The fourth proportional to 100,673.65, 151,107.68 and 61,307.65 is: 92,020.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,673.65 : 151,107.68 = 61,307.65 : x
  2. Step 2: Convert to fraction form
    100,673.65/151,107.68 = 61,307.65/x
  3. Step 3: Cross multiply
    100,673.65x = 151,107.68 × 61,307.65
  4. Step 4: Simplify right side
    100,673.65x = 9,264,056,451.21
  5. Step 5: Solve for x
    x = 9,264,056,451.21/100,673.65
  6. Step 6: Final answer
    x = 92,020.67

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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.