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Finding the Fourth Proportional to 172,730.99, 238,428.42 and 101,134.01

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Solution

The fourth proportional to 172,730.99, 238,428.42 and 101,134.01 is: 139,599.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,730.99 : 238,428.42 = 101,134.01 : x
  2. Step 2: Convert to fraction form
    172,730.99/238,428.42 = 101,134.01/x
  3. Step 3: Cross multiply
    172,730.99x = 238,428.42 × 101,134.01
  4. Step 4: Simplify right side
    172,730.99x = 24,113,222,212.56
  5. Step 5: Solve for x
    x = 24,113,222,212.56/172,730.99
  6. Step 6: Final answer
    x = 139,599.86

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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.