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Finding the Fourth Proportional to 127,812.90, 191,719.35 and 114,034.80

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Solution

The fourth proportional to 127,812.90, 191,719.35 and 114,034.80 is: 171,052.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,812.90 : 191,719.35 = 114,034.80 : x
  2. Step 2: Convert to fraction form
    127,812.90/191,719.35 = 114,034.80/x
  3. Step 3: Cross multiply
    127,812.90x = 191,719.35 × 114,034.80
  4. Step 4: Simplify right side
    127,812.90x = 21,862,677,733.38
  5. Step 5: Solve for x
    x = 21,862,677,733.38/127,812.90
  6. Step 6: Final answer
    x = 171,052.20

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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.