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Finding the Fourth Proportional to 121,037.40, 181,491.30 and 50,837.40

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Solution

The fourth proportional to 121,037.40, 181,491.30 and 50,837.40 is: 76,228.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,037.40 : 181,491.30 = 50,837.40 : x
  2. Step 2: Convert to fraction form
    121,037.40/181,491.30 = 50,837.40/x
  3. Step 3: Cross multiply
    121,037.40x = 181,491.30 × 50,837.40
  4. Step 4: Simplify right side
    121,037.40x = 9,226,545,814.62
  5. Step 5: Solve for x
    x = 9,226,545,814.62/121,037.40
  6. Step 6: Final answer
    x = 76,228.88

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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.