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Finding the Fourth Proportional to 460,697.33, 691,170.55 and 140,860.50

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Solution

The fourth proportional to 460,697.33, 691,170.55 and 140,860.50 is: 211,328.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,697.33 : 691,170.55 = 140,860.50 : x
  2. Step 2: Convert to fraction form
    460,697.33/691,170.55 = 140,860.50/x
  3. Step 3: Cross multiply
    460,697.33x = 691,170.55 × 140,860.50
  4. Step 4: Simplify right side
    460,697.33x = 97,358,626,314.23
  5. Step 5: Solve for x
    x = 97,358,626,314.23/460,697.33
  6. Step 6: Final answer
    x = 211,328.83

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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.