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Finding the Fourth Proportional to 92,873.88, 139,310.82 and 37,431

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Solution

The fourth proportional to 92,873.88, 139,310.82 and 37,431 is: 56,146.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,873.88 : 139,310.82 = 37,431 : x
  2. Step 2: Convert to fraction form
    92,873.88/139,310.82 = 37,431/x
  3. Step 3: Cross multiply
    92,873.88x = 139,310.82 × 37,431
  4. Step 4: Simplify right side
    92,873.88x = 5,214,543,303.42
  5. Step 5: Solve for x
    x = 5,214,543,303.42/92,873.88
  6. Step 6: Final answer
    x = 56,146.50

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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.