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Finding the Fourth Proportional to 319,332.66, 440,669.61 and 176,092.68

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Solution

The fourth proportional to 319,332.66, 440,669.61 and 176,092.68 is: 243,002.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,332.66 : 440,669.61 = 176,092.68 : x
  2. Step 2: Convert to fraction form
    319,332.66/440,669.61 = 176,092.68/x
  3. Step 3: Cross multiply
    319,332.66x = 440,669.61 × 176,092.68
  4. Step 4: Simplify right side
    319,332.66x = 77,598,692,619.45
  5. Step 5: Solve for x
    x = 77,598,692,619.45/319,332.66
  6. Step 6: Final answer
    x = 243,002.68

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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.