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Finding the Fourth Proportional to 92,640.40, 127,864.74 and 52,377.48

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Solution

The fourth proportional to 92,640.40, 127,864.74 and 52,377.48 is: 72,292.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,640.40 : 127,864.74 = 52,377.48 : x
  2. Step 2: Convert to fraction form
    92,640.40/127,864.74 = 52,377.48/x
  3. Step 3: Cross multiply
    92,640.40x = 127,864.74 × 52,377.48
  4. Step 4: Simplify right side
    92,640.40x = 6,697,232,862.06
  5. Step 5: Solve for x
    x = 6,697,232,862.06/92,640.40
  6. Step 6: Final answer
    x = 72,292.79

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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.