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Finding the Fourth Proportional to 307,573.39, 424,484.10 and 171,654.58

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Solution

The fourth proportional to 307,573.39, 424,484.10 and 171,654.58 is: 236,901.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,573.39 : 424,484.10 = 171,654.58 : x
  2. Step 2: Convert to fraction form
    307,573.39/424,484.10 = 171,654.58/x
  3. Step 3: Cross multiply
    307,573.39x = 424,484.10 × 171,654.58
  4. Step 4: Simplify right side
    307,573.39x = 72,864,636,921.48
  5. Step 5: Solve for x
    x = 72,864,636,921.48/307,573.39
  6. Step 6: Final answer
    x = 236,901.63

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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.