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Finding the Fourth Proportional to 227,159.64, 340,749.18 and 84,991.68

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Solution

The fourth proportional to 227,159.64, 340,749.18 and 84,991.68 is: 127,491.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,159.64 : 340,749.18 = 84,991.68 : x
  2. Step 2: Convert to fraction form
    227,159.64/340,749.18 = 84,991.68/x
  3. Step 3: Cross multiply
    227,159.64x = 340,749.18 × 84,991.68
  4. Step 4: Simplify right side
    227,159.64x = 28,960,845,266.82
  5. Step 5: Solve for x
    x = 28,960,845,266.82/227,159.64
  6. Step 6: Final answer
    x = 127,491.16

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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.