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Finding the Fourth Proportional to 303,555.76, 418,936.71 and 176,223.76

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Solution

The fourth proportional to 303,555.76, 418,936.71 and 176,223.76 is: 243,206.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,555.76 : 418,936.71 = 176,223.76 : x
  2. Step 2: Convert to fraction form
    303,555.76/418,936.71 = 176,223.76/x
  3. Step 3: Cross multiply
    303,555.76x = 418,936.71 × 176,223.76
  4. Step 4: Simplify right side
    303,555.76x = 73,826,602,238.23
  5. Step 5: Solve for x
    x = 73,826,602,238.23/303,555.76
  6. Step 6: Final answer
    x = 243,206.07

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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.