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Finding the Fourth Proportional to 319,473.54, 479,030.49 and 106,127.24

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Solution

The fourth proportional to 319,473.54, 479,030.49 and 106,127.24 is: 159,131.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,473.54 : 479,030.49 = 106,127.24 : x
  2. Step 2: Convert to fraction form
    319,473.54/479,030.49 = 106,127.24/x
  3. Step 3: Cross multiply
    319,473.54x = 479,030.49 × 106,127.24
  4. Step 4: Simplify right side
    319,473.54x = 50,838,181,384.40
  5. Step 5: Solve for x
    x = 50,838,181,384.40/319,473.54
  6. Step 6: Final answer
    x = 159,131.12

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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.