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Finding the Fourth Proportional to 135,957.55, 187,621.62 and 75,526.55

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Solution

The fourth proportional to 135,957.55, 187,621.62 and 75,526.55 is: 104,226.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,957.55 : 187,621.62 = 75,526.55 : x
  2. Step 2: Convert to fraction form
    135,957.55/187,621.62 = 75,526.55/x
  3. Step 3: Cross multiply
    135,957.55x = 187,621.62 × 75,526.55
  4. Step 4: Simplify right side
    135,957.55x = 14,170,413,664.01
  5. Step 5: Solve for x
    x = 14,170,413,664.01/135,957.55
  6. Step 6: Final answer
    x = 104,226.75

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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.