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Finding the Fourth Proportional to 97,940.34, 134,957.43 and 92,646.90

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Solution

The fourth proportional to 97,940.34, 134,957.43 and 92,646.90 is: 127,663.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,940.34 : 134,957.43 = 92,646.90 : x
  2. Step 2: Convert to fraction form
    97,940.34/134,957.43 = 92,646.90/x
  3. Step 3: Cross multiply
    97,940.34x = 134,957.43 × 92,646.90
  4. Step 4: Simplify right side
    97,940.34x = 12,503,387,521.47
  5. Step 5: Solve for x
    x = 12,503,387,521.47/97,940.34
  6. Step 6: Final answer
    x = 127,663.31

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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.