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Finding the Fourth Proportional to 187,403.63, 281,134.65 and 61,014.03

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Solution

The fourth proportional to 187,403.63, 281,134.65 and 61,014.03 is: 91,530.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,403.63 : 281,134.65 = 61,014.03 : x
  2. Step 2: Convert to fraction form
    187,403.63/281,134.65 = 61,014.03/x
  3. Step 3: Cross multiply
    187,403.63x = 281,134.65 × 61,014.03
  4. Step 4: Simplify right side
    187,403.63x = 17,153,159,172.56
  5. Step 5: Solve for x
    x = 17,153,159,172.56/187,403.63
  6. Step 6: Final answer
    x = 91,530.56

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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.