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Finding the Fourth Proportional to 89,931.44, 134,725.44 and 50,368.88

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Solution

The fourth proportional to 89,931.44, 134,725.44 and 50,368.88 is: 75,457.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,931.44 : 134,725.44 = 50,368.88 : x
  2. Step 2: Convert to fraction form
    89,931.44/134,725.44 = 50,368.88/x
  3. Step 3: Cross multiply
    89,931.44x = 134,725.44 × 50,368.88
  4. Step 4: Simplify right side
    89,931.44x = 6,785,969,520.31
  5. Step 5: Solve for x
    x = 6,785,969,520.31/89,931.44
  6. Step 6: Final answer
    x = 75,457.14

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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.