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Finding the Fourth Proportional to 302,660, 417,670.80 and 168,555.68

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Solution

The fourth proportional to 302,660, 417,670.80 and 168,555.68 is: 232,606.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,660 : 417,670.80 = 168,555.68 : x
  2. Step 2: Convert to fraction form
    302,660/417,670.80 = 168,555.68/x
  3. Step 3: Cross multiply
    302,660x = 417,670.80 × 168,555.68
  4. Step 4: Simplify right side
    302,660x = 70,400,785,710.14
  5. Step 5: Solve for x
    x = 70,400,785,710.14/302,660
  6. Step 6: Final answer
    x = 232,606.84

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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.