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Finding the Fourth Proportional to 92,376.32, 127,469.81 and 68,190.15

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Solution

The fourth proportional to 92,376.32, 127,469.81 and 68,190.15 is: 94,095.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,376.32 : 127,469.81 = 68,190.15 : x
  2. Step 2: Convert to fraction form
    92,376.32/127,469.81 = 68,190.15/x
  3. Step 3: Cross multiply
    92,376.32x = 127,469.81 × 68,190.15
  4. Step 4: Simplify right side
    92,376.32x = 8,692,184,970.59
  5. Step 5: Solve for x
    x = 8,692,184,970.59/92,376.32
  6. Step 6: Final answer
    x = 94,095.38

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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.