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Finding the Fourth Proportional to 92,803.11, 128,068.64 and 50,361.63

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Solution

The fourth proportional to 92,803.11, 128,068.64 and 50,361.63 is: 69,499.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,803.11 : 128,068.64 = 50,361.63 : x
  2. Step 2: Convert to fraction form
    92,803.11/128,068.64 = 50,361.63/x
  3. Step 3: Cross multiply
    92,803.11x = 128,068.64 × 50,361.63
  4. Step 4: Simplify right side
    92,803.11x = 6,449,745,462.28
  5. Step 5: Solve for x
    x = 6,449,745,462.28/92,803.11
  6. Step 6: Final answer
    x = 69,499.24

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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.