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Finding the Fourth Proportional to 172,648.55, 258,954.18 and 46,301.51

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Solution

The fourth proportional to 172,648.55, 258,954.18 and 46,301.51 is: 69,447.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,648.55 : 258,954.18 = 46,301.51 : x
  2. Step 2: Convert to fraction form
    172,648.55/258,954.18 = 46,301.51/x
  3. Step 3: Cross multiply
    172,648.55x = 258,954.18 × 46,301.51
  4. Step 4: Simplify right side
    172,648.55x = 11,989,968,260.04
  5. Step 5: Solve for x
    x = 11,989,968,260.04/172,648.55
  6. Step 6: Final answer
    x = 69,447.26

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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.