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Finding the Fourth Proportional to 461,890, 692,855.16 and 146,370.16

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Solution

The fourth proportional to 461,890, 692,855.16 and 146,370.16 is: 219,561.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,890 : 692,855.16 = 146,370.16 : x
  2. Step 2: Convert to fraction form
    461,890/692,855.16 = 146,370.16/x
  3. Step 3: Cross multiply
    461,890x = 692,855.16 × 146,370.16
  4. Step 4: Simplify right side
    461,890x = 101,413,320,626.03
  5. Step 5: Solve for x
    x = 101,413,320,626.03/461,890
  6. Step 6: Final answer
    x = 219,561.63

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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.