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Finding the Fourth Proportional to 254,520.56, 381,781.95 and 86,041.77

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Solution

The fourth proportional to 254,520.56, 381,781.95 and 86,041.77 is: 129,063.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,520.56 : 381,781.95 = 86,041.77 : x
  2. Step 2: Convert to fraction form
    254,520.56/381,781.95 = 86,041.77/x
  3. Step 3: Cross multiply
    254,520.56x = 381,781.95 × 86,041.77
  4. Step 4: Simplify right side
    254,520.56x = 32,849,194,301.84
  5. Step 5: Solve for x
    x = 32,849,194,301.84/254,520.56
  6. Step 6: Final answer
    x = 129,063.03

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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.