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Finding the Fourth Proportional to 92,012.70, 137,946.15 and 50,459.70

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Solution

The fourth proportional to 92,012.70, 137,946.15 and 50,459.70 is: 75,649.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,012.70 : 137,946.15 = 50,459.70 : x
  2. Step 2: Convert to fraction form
    92,012.70/137,946.15 = 50,459.70/x
  3. Step 3: Cross multiply
    92,012.70x = 137,946.15 × 50,459.70
  4. Step 4: Simplify right side
    92,012.70x = 6,960,721,345.16
  5. Step 5: Solve for x
    x = 6,960,721,345.16/92,012.70
  6. Step 6: Final answer
    x = 75,649.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.