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Finding the Fourth Proportional to 254,984.76, 382,520.88 and 77,509.44

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Solution

The fourth proportional to 254,984.76, 382,520.88 and 77,509.44 is: 116,277.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,984.76 : 382,520.88 = 77,509.44 : x
  2. Step 2: Convert to fraction form
    254,984.76/382,520.88 = 77,509.44/x
  3. Step 3: Cross multiply
    254,984.76x = 382,520.88 × 77,509.44
  4. Step 4: Simplify right side
    254,984.76x = 29,648,979,197.11
  5. Step 5: Solve for x
    x = 29,648,979,197.11/254,984.76
  6. Step 6: Final answer
    x = 116,277.46

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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.