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Finding the Fourth Proportional to 92,356.16, 127,451.20 and 49,914.56

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Solution

The fourth proportional to 92,356.16, 127,451.20 and 49,914.56 is: 68,881.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,356.16 : 127,451.20 = 49,914.56 : x
  2. Step 2: Convert to fraction form
    92,356.16/127,451.20 = 49,914.56/x
  3. Step 3: Cross multiply
    92,356.16x = 127,451.20 × 49,914.56
  4. Step 4: Simplify right side
    92,356.16x = 6,361,670,569.47
  5. Step 5: Solve for x
    x = 6,361,670,569.47/92,356.16
  6. Step 6: Final answer
    x = 68,881.93

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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.