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Finding the Fourth Proportional to 173,477.79, 259,812.50 and 168,689.28

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Solution

The fourth proportional to 173,477.79, 259,812.50 and 168,689.28 is: 252,640.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,477.79 : 259,812.50 = 168,689.28 : x
  2. Step 2: Convert to fraction form
    173,477.79/259,812.50 = 168,689.28/x
  3. Step 3: Cross multiply
    173,477.79x = 259,812.50 × 168,689.28
  4. Step 4: Simplify right side
    173,477.79x = 43,827,583,560
  5. Step 5: Solve for x
    x = 43,827,583,560/173,477.79
  6. Step 6: Final answer
    x = 252,640.89

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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.