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Finding the Fourth Proportional to 132,703.92, 183,133.71 and 75,341.75

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Solution

The fourth proportional to 132,703.92, 183,133.71 and 75,341.75 is: 103,972.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,703.92 : 183,133.71 = 75,341.75 : x
  2. Step 2: Convert to fraction form
    132,703.92/183,133.71 = 75,341.75/x
  3. Step 3: Cross multiply
    132,703.92x = 183,133.71 × 75,341.75
  4. Step 4: Simplify right side
    132,703.92x = 13,797,613,279.72
  5. Step 5: Solve for x
    x = 13,797,613,279.72/132,703.92
  6. Step 6: Final answer
    x = 103,972.91

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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.