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Finding the Fourth Proportional to 319,563.39, 441,006.71 and 176,332.66

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Solution

The fourth proportional to 319,563.39, 441,006.71 and 176,332.66 is: 243,344.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,563.39 : 441,006.71 = 176,332.66 : x
  2. Step 2: Convert to fraction form
    319,563.39/441,006.71 = 176,332.66/x
  3. Step 3: Cross multiply
    319,563.39x = 441,006.71 × 176,332.66
  4. Step 4: Simplify right side
    319,563.39x = 77,763,886,252.15
  5. Step 5: Solve for x
    x = 77,763,886,252.15/319,563.39
  6. Step 6: Final answer
    x = 243,344.16

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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.