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Finding the Fourth Proportional to 302,490.72, 417,390.89 and 175,141.71

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Solution

The fourth proportional to 302,490.72, 417,390.89 and 175,141.71 is: 241,668.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,490.72 : 417,390.89 = 175,141.71 : x
  2. Step 2: Convert to fraction form
    302,490.72/417,390.89 = 175,141.71/x
  3. Step 3: Cross multiply
    302,490.72x = 417,390.89 × 175,141.71
  4. Step 4: Simplify right side
    302,490.72x = 73,102,553,337.31
  5. Step 5: Solve for x
    x = 73,102,553,337.31/302,490.72
  6. Step 6: Final answer
    x = 241,668.75

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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.