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Finding the Fourth Proportional to 303,501.78, 418,767.48 and 176,109.03

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Solution

The fourth proportional to 303,501.78, 418,767.48 and 176,109.03 is: 242,992.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,501.78 : 418,767.48 = 176,109.03 : x
  2. Step 2: Convert to fraction form
    303,501.78/418,767.48 = 176,109.03/x
  3. Step 3: Cross multiply
    303,501.78x = 418,767.48 × 176,109.03
  4. Step 4: Simplify right side
    303,501.78x = 73,748,734,698.34
  5. Step 5: Solve for x
    x = 73,748,734,698.34/303,501.78
  6. Step 6: Final answer
    x = 242,992.76

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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.