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Finding the Fourth Proportional to 186,127.76, 279,030.36 and 75,247.76

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Solution

The fourth proportional to 186,127.76, 279,030.36 and 75,247.76 is: 112,806.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,127.76 : 279,030.36 = 75,247.76 : x
  2. Step 2: Convert to fraction form
    186,127.76/279,030.36 = 75,247.76/x
  3. Step 3: Cross multiply
    186,127.76x = 279,030.36 × 75,247.76
  4. Step 4: Simplify right side
    186,127.76x = 20,996,409,561.99
  5. Step 5: Solve for x
    x = 20,996,409,561.99/186,127.76
  6. Step 6: Final answer
    x = 112,806.44

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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.