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Finding the Fourth Proportional to 171,345.38, 257,018.06 and 46,686.38

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Solution

The fourth proportional to 171,345.38, 257,018.06 and 46,686.38 is: 70,029.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,345.38 : 257,018.06 = 46,686.38 : x
  2. Step 2: Convert to fraction form
    171,345.38/257,018.06 = 46,686.38/x
  3. Step 3: Cross multiply
    171,345.38x = 257,018.06 × 46,686.38
  4. Step 4: Simplify right side
    171,345.38x = 11,999,241,647.65
  5. Step 5: Solve for x
    x = 11,999,241,647.65/171,345.38
  6. Step 6: Final answer
    x = 70,029.56

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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.