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Finding the Fourth Proportional to 132,953.87, 183,477.51 and 72,524.78

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Solution

The fourth proportional to 132,953.87, 183,477.51 and 72,524.78 is: 100,084.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,953.87 : 183,477.51 = 72,524.78 : x
  2. Step 2: Convert to fraction form
    132,953.87/183,477.51 = 72,524.78/x
  3. Step 3: Cross multiply
    132,953.87x = 183,477.51 × 72,524.78
  4. Step 4: Simplify right side
    132,953.87x = 13,306,666,047.70
  5. Step 5: Solve for x
    x = 13,306,666,047.70/132,953.87
  6. Step 6: Final answer
    x = 100,084.83

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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.