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Finding the Fourth Proportional to 89,854.20, 134,927.10 and 50,488.20

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Solution

The fourth proportional to 89,854.20, 134,927.10 and 50,488.20 is: 75,814.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,854.20 : 134,927.10 = 50,488.20 : x
  2. Step 2: Convert to fraction form
    89,854.20/134,927.10 = 50,488.20/x
  3. Step 3: Cross multiply
    89,854.20x = 134,927.10 × 50,488.20
  4. Step 4: Simplify right side
    89,854.20x = 6,812,226,410.22
  5. Step 5: Solve for x
    x = 6,812,226,410.22/89,854.20
  6. Step 6: Final answer
    x = 75,814.22

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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.