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Finding the Fourth Proportional to 319,353.88, 440,702.22 and 176,127.16

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Solution

The fourth proportional to 319,353.88, 440,702.22 and 176,127.16 is: 243,052.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,353.88 : 440,702.22 = 176,127.16 : x
  2. Step 2: Convert to fraction form
    319,353.88/440,702.22 = 176,127.16/x
  3. Step 3: Cross multiply
    319,353.88x = 440,702.22 × 176,127.16
  4. Step 4: Simplify right side
    319,353.88x = 77,619,630,414.30
  5. Step 5: Solve for x
    x = 77,619,630,414.30/319,353.88
  6. Step 6: Final answer
    x = 243,052.10

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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.