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Finding the Fourth Proportional to 319,903.48, 441,473.70 and 176,672.68

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Solution

The fourth proportional to 319,903.48, 441,473.70 and 176,672.68 is: 243,812.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,903.48 : 441,473.70 = 176,672.68 : x
  2. Step 2: Convert to fraction form
    319,903.48/441,473.70 = 176,672.68/x
  3. Step 3: Cross multiply
    319,903.48x = 441,473.70 × 176,672.68
  4. Step 4: Simplify right side
    319,903.48x = 77,996,341,728.52
  5. Step 5: Solve for x
    x = 77,996,341,728.52/319,903.48
  6. Step 6: Final answer
    x = 243,812.11

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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.