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Finding the Fourth Proportional to 63,136.40, 87,130.02 and 34,843.90

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Solution

The fourth proportional to 63,136.40, 87,130.02 and 34,843.90 is: 48,085.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,136.40 : 87,130.02 = 34,843.90 : x
  2. Step 2: Convert to fraction form
    63,136.40/87,130.02 = 34,843.90/x
  3. Step 3: Cross multiply
    63,136.40x = 87,130.02 × 34,843.90
  4. Step 4: Simplify right side
    63,136.40x = 3,035,949,703.88
  5. Step 5: Solve for x
    x = 3,035,949,703.88/63,136.40
  6. Step 6: Final answer
    x = 48,085.57

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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.