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Finding the Fourth Proportional to 92,370.45, 127,472.63 and 54,120.84

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Solution

The fourth proportional to 92,370.45, 127,472.63 and 54,120.84 is: 74,687.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,370.45 : 127,472.63 = 54,120.84 : x
  2. Step 2: Convert to fraction form
    92,370.45/127,472.63 = 54,120.84/x
  3. Step 3: Cross multiply
    92,370.45x = 127,472.63 × 54,120.84
  4. Step 4: Simplify right side
    92,370.45x = 6,898,925,812.61
  5. Step 5: Solve for x
    x = 6,898,925,812.61/92,370.45
  6. Step 6: Final answer
    x = 74,687.58

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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.