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Finding the Fourth Proportional to 127,348.49, 191,045.79 and 41,963.90

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Solution

The fourth proportional to 127,348.49, 191,045.79 and 41,963.90 is: 62,953.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,348.49 : 191,045.79 = 41,963.90 : x
  2. Step 2: Convert to fraction form
    127,348.49/191,045.79 = 41,963.90/x
  3. Step 3: Cross multiply
    127,348.49x = 191,045.79 × 41,963.90
  4. Step 4: Simplify right side
    127,348.49x = 8,017,026,426.98
  5. Step 5: Solve for x
    x = 8,017,026,426.98/127,348.49
  6. Step 6: Final answer
    x = 62,953.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.