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Finding the Fourth Proportional to 319,761.64, 441,274.64 and 176,521.76

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Solution

The fourth proportional to 319,761.64, 441,274.64 and 176,521.76 is: 243,602.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,761.64 : 441,274.64 = 176,521.76 : x
  2. Step 2: Convert to fraction form
    319,761.64/441,274.64 = 176,521.76/x
  3. Step 3: Cross multiply
    319,761.64x = 441,274.64 × 176,521.76
  4. Step 4: Simplify right side
    319,761.64x = 77,894,576,096.17
  5. Step 5: Solve for x
    x = 77,894,576,096.17/319,761.64
  6. Step 6: Final answer
    x = 243,602.00

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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.