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Finding the Fourth Proportional to 135,662.68, 187,225.72 and 75,252.84

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Solution

The fourth proportional to 135,662.68, 187,225.72 and 75,252.84 is: 103,855.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,662.68 : 187,225.72 = 75,252.84 : x
  2. Step 2: Convert to fraction form
    135,662.68/187,225.72 = 75,252.84/x
  3. Step 3: Cross multiply
    135,662.68x = 187,225.72 × 75,252.84
  4. Step 4: Simplify right side
    135,662.68x = 14,089,267,151.04
  5. Step 5: Solve for x
    x = 14,089,267,151.04/135,662.68
  6. Step 6: Final answer
    x = 103,855.14

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1.5x scale

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.