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Finding the Fourth Proportional to 124,423.84, 186,756 and 117,680.56

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Solution

The fourth proportional to 124,423.84, 186,756 and 117,680.56 is: 176,634.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,423.84 : 186,756 = 117,680.56 : x
  2. Step 2: Convert to fraction form
    124,423.84/186,756 = 117,680.56/x
  3. Step 3: Cross multiply
    124,423.84x = 186,756 × 117,680.56
  4. Step 4: Simplify right side
    124,423.84x = 21,977,550,663.36
  5. Step 5: Solve for x
    x = 21,977,550,663.36/124,423.84
  6. Step 6: Final answer
    x = 176,634.56

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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.