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Finding the Fourth Proportional to 319,248.36, 440,565.80 and 176,013.54

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Solution

The fourth proportional to 319,248.36, 440,565.80 and 176,013.54 is: 242,900.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,248.36 : 440,565.80 = 176,013.54 : x
  2. Step 2: Convert to fraction form
    319,248.36/440,565.80 = 176,013.54/x
  3. Step 3: Cross multiply
    319,248.36x = 440,565.80 × 176,013.54
  4. Step 4: Simplify right side
    319,248.36x = 77,545,545,180.86
  5. Step 5: Solve for x
    x = 77,545,545,180.86/319,248.36
  6. Step 6: Final answer
    x = 242,900.37

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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.