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Finding the Fourth Proportional to 319,565.52, 441,009.64 and 176,334.79

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Solution

The fourth proportional to 319,565.52, 441,009.64 and 176,334.79 is: 243,347.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,565.52 : 441,009.64 = 176,334.79 : x
  2. Step 2: Convert to fraction form
    319,565.52/441,009.64 = 176,334.79/x
  3. Step 3: Cross multiply
    319,565.52x = 441,009.64 × 176,334.79
  4. Step 4: Simplify right side
    319,565.52x = 77,765,342,257.38
  5. Step 5: Solve for x
    x = 77,765,342,257.38/319,565.52
  6. Step 6: Final answer
    x = 243,347.10

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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.