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Finding the Fourth Proportional to 132,894.76, 183,393.43 and 72,465.25

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Solution

The fourth proportional to 132,894.76, 183,393.43 and 72,465.25 is: 100,001.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,894.76 : 183,393.43 = 72,465.25 : x
  2. Step 2: Convert to fraction form
    132,894.76/183,393.43 = 72,465.25/x
  3. Step 3: Cross multiply
    132,894.76x = 183,393.43 × 72,465.25
  4. Step 4: Simplify right side
    132,894.76x = 13,289,650,753.31
  5. Step 5: Solve for x
    x = 13,289,650,753.31/132,894.76
  6. Step 6: Final answer
    x = 100,001.31

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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.