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Finding the Fourth Proportional to 448,573.30, 672,989.55 and 133,037.80

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Solution

The fourth proportional to 448,573.30, 672,989.55 and 133,037.80 is: 199,595.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,573.30 : 672,989.55 = 133,037.80 : x
  2. Step 2: Convert to fraction form
    448,573.30/672,989.55 = 133,037.80/x
  3. Step 3: Cross multiply
    448,573.30x = 672,989.55 × 133,037.80
  4. Step 4: Simplify right side
    448,573.30x = 89,533,049,154.99
  5. Step 5: Solve for x
    x = 89,533,049,154.99/448,573.30
  6. Step 6: Final answer
    x = 199,595.14

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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.