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Finding the Fourth Proportional to 92,428.53, 127,551.42 and 49,987.07

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Solution

The fourth proportional to 92,428.53, 127,551.42 and 49,987.07 is: 68,982.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,428.53 : 127,551.42 = 49,987.07 : x
  2. Step 2: Convert to fraction form
    92,428.53/127,551.42 = 49,987.07/x
  3. Step 3: Cross multiply
    92,428.53x = 127,551.42 × 49,987.07
  4. Step 4: Simplify right side
    92,428.53x = 6,375,921,760.14
  5. Step 5: Solve for x
    x = 6,375,921,760.14/92,428.53
  6. Step 6: Final answer
    x = 68,982.18

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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.