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Finding the Fourth Proportional to 92,578.55, 127,758.13 and 50,136.98

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Solution

The fourth proportional to 92,578.55, 127,758.13 and 50,136.98 is: 69,188.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,578.55 : 127,758.13 = 50,136.98 : x
  2. Step 2: Convert to fraction form
    92,578.55/127,758.13 = 50,136.98/x
  3. Step 3: Cross multiply
    92,578.55x = 127,758.13 × 50,136.98
  4. Step 4: Simplify right side
    92,578.55x = 6,405,406,044.51
  5. Step 5: Solve for x
    x = 6,405,406,044.51/92,578.55
  6. Step 6: Final answer
    x = 69,188.88

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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.