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Finding the Fourth Proportional to 171,579.51, 257,365.62 and 46,920.51

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Solution

The fourth proportional to 171,579.51, 257,365.62 and 46,920.51 is: 70,379.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,579.51 : 257,365.62 = 46,920.51 : x
  2. Step 2: Convert to fraction form
    171,579.51/257,365.62 = 46,920.51/x
  3. Step 3: Cross multiply
    171,579.51x = 257,365.62 × 46,920.51
  4. Step 4: Simplify right side
    171,579.51x = 12,075,726,146.87
  5. Step 5: Solve for x
    x = 12,075,726,146.87/171,579.51
  6. Step 6: Final answer
    x = 70,379.77

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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.