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Finding the Fourth Proportional to 92,378.75, 127,482.39 and 49,937.31

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Solution

The fourth proportional to 92,378.75, 127,482.39 and 49,937.31 is: 68,913.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,378.75 : 127,482.39 = 49,937.31 : x
  2. Step 2: Convert to fraction form
    92,378.75/127,482.39 = 49,937.31/x
  3. Step 3: Cross multiply
    92,378.75x = 127,482.39 × 49,937.31
  4. Step 4: Simplify right side
    92,378.75x = 6,366,127,628.97
  5. Step 5: Solve for x
    x = 6,366,127,628.97/92,378.75
  6. Step 6: Final answer
    x = 68,913.34

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1.5x scale

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.