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Finding the Fourth Proportional to 124,950.34, 172,434 and 68,362.94

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Solution

The fourth proportional to 124,950.34, 172,434 and 68,362.94 is: 94,342.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,950.34 : 172,434 = 68,362.94 : x
  2. Step 2: Convert to fraction form
    124,950.34/172,434 = 68,362.94/x
  3. Step 3: Cross multiply
    124,950.34x = 172,434 × 68,362.94
  4. Step 4: Simplify right side
    124,950.34x = 11,788,095,195.96
  5. Step 5: Solve for x
    x = 11,788,095,195.96/124,950.34
  6. Step 6: Final answer
    x = 94,342.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.