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Finding the Fourth Proportional to 187,602.93, 281,109.53 and 145,012.62

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Solution

The fourth proportional to 187,602.93, 281,109.53 and 145,012.62 is: 217,291.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,602.93 : 281,109.53 = 145,012.62 : x
  2. Step 2: Convert to fraction form
    187,602.93/281,109.53 = 145,012.62/x
  3. Step 3: Cross multiply
    187,602.93x = 281,109.53 × 145,012.62
  4. Step 4: Simplify right side
    187,602.93x = 40,764,429,452.27
  5. Step 5: Solve for x
    x = 40,764,429,452.27/187,602.93
  6. Step 6: Final answer
    x = 217,291.01

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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.