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Finding the Fourth Proportional to 132,960.51, 183,509.30 and 79,248.93

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Solution

The fourth proportional to 132,960.51, 183,509.30 and 79,248.93 is: 109,377.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,960.51 : 183,509.30 = 79,248.93 : x
  2. Step 2: Convert to fraction form
    132,960.51/183,509.30 = 79,248.93/x
  3. Step 3: Cross multiply
    132,960.51x = 183,509.30 × 79,248.93
  4. Step 4: Simplify right side
    132,960.51x = 14,542,915,670.05
  5. Step 5: Solve for x
    x = 14,542,915,670.05/132,960.51
  6. Step 6: Final answer
    x = 109,377.71

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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.