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Finding the Fourth Proportional to 319,468.77, 440,866.94 and 176,229.18

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Solution

The fourth proportional to 319,468.77, 440,866.94 and 176,229.18 is: 243,196.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,468.77 : 440,866.94 = 176,229.18 : x
  2. Step 2: Convert to fraction form
    319,468.77/440,866.94 = 176,229.18/x
  3. Step 3: Cross multiply
    319,468.77x = 440,866.94 × 176,229.18
  4. Step 4: Simplify right side
    319,468.77x = 77,693,618,444.16
  5. Step 5: Solve for x
    x = 77,693,618,444.16/319,468.77
  6. Step 6: Final answer
    x = 243,196.29

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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.