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Finding the Fourth Proportional to 255,170.54, 382,811.16 and 77,672.94

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Solution

The fourth proportional to 255,170.54, 382,811.16 and 77,672.94 is: 116,526.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,170.54 : 382,811.16 = 77,672.94 : x
  2. Step 2: Convert to fraction form
    255,170.54/382,811.16 = 77,672.94/x
  3. Step 3: Cross multiply
    255,170.54x = 382,811.16 × 77,672.94
  4. Step 4: Simplify right side
    255,170.54x = 29,734,068,262.01
  5. Step 5: Solve for x
    x = 29,734,068,262.01/255,170.54
  6. Step 6: Final answer
    x = 116,526.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.