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Finding the Fourth Proportional to 303,356.65, 418,715.45 and 176,073.25

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Solution

The fourth proportional to 303,356.65, 418,715.45 and 176,073.25 is: 243,029.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,356.65 : 418,715.45 = 176,073.25 : x
  2. Step 2: Convert to fraction form
    303,356.65/418,715.45 = 176,073.25/x
  3. Step 3: Cross multiply
    303,356.65x = 418,715.45 × 176,073.25
  4. Step 4: Simplify right side
    303,356.65x = 73,724,590,106.71
  5. Step 5: Solve for x
    x = 73,724,590,106.71/303,356.65
  6. Step 6: Final answer
    x = 243,029.42

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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.