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Finding the Fourth Proportional to 319,807.71, 441,335.30 and 176,568.03

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Solution

The fourth proportional to 319,807.71, 441,335.30 and 176,568.03 is: 243,664.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,807.71 : 441,335.30 = 176,568.03 : x
  2. Step 2: Convert to fraction form
    319,807.71/441,335.30 = 176,568.03/x
  3. Step 3: Cross multiply
    319,807.71x = 441,335.30 × 176,568.03
  4. Step 4: Simplify right side
    319,807.71x = 77,925,703,607.62
  5. Step 5: Solve for x
    x = 77,925,703,607.62/319,807.71
  6. Step 6: Final answer
    x = 243,664.24

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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.