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Finding the Fourth Proportional to 127,282.40, 189,993.09 and 118,031.12

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Solution

The fourth proportional to 127,282.40, 189,993.09 and 118,031.12 is: 176,183.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,282.40 : 189,993.09 = 118,031.12 : x
  2. Step 2: Convert to fraction form
    127,282.40/189,993.09 = 118,031.12/x
  3. Step 3: Cross multiply
    127,282.40x = 189,993.09 × 118,031.12
  4. Step 4: Simplify right side
    127,282.40x = 22,425,096,614.81
  5. Step 5: Solve for x
    x = 22,425,096,614.81/127,282.40
  6. Step 6: Final answer
    x = 176,183.80

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.