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Finding the Fourth Proportional to 358,496.92, 538,077.66 and 181,128.88

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Solution

The fourth proportional to 358,496.92, 538,077.66 and 181,128.88 is: 271,861.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,496.92 : 538,077.66 = 181,128.88 : x
  2. Step 2: Convert to fraction form
    358,496.92/538,077.66 = 181,128.88/x
  3. Step 3: Cross multiply
    358,496.92x = 538,077.66 × 181,128.88
  4. Step 4: Simplify right side
    358,496.92x = 97,461,403,908.82
  5. Step 5: Solve for x
    x = 97,461,403,908.82/358,496.92
  6. Step 6: Final answer
    x = 271,861.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.