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Finding the Fourth Proportional to 199,492.71, 275,050.94 and 127,754.79

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Solution

The fourth proportional to 199,492.71, 275,050.94 and 127,754.79 is: 176,142.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,492.71 : 275,050.94 = 127,754.79 : x
  2. Step 2: Convert to fraction form
    199,492.71/275,050.94 = 127,754.79/x
  3. Step 3: Cross multiply
    199,492.71x = 275,050.94 × 127,754.79
  4. Step 4: Simplify right side
    199,492.71x = 35,139,074,440.23
  5. Step 5: Solve for x
    x = 35,139,074,440.23/199,492.71
  6. Step 6: Final answer
    x = 176,142.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.