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Finding the Fourth Proportional to 299,308.68, 449,037.76 and 88,946.64

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Solution

The fourth proportional to 299,308.68, 449,037.76 and 88,946.64 is: 133,442.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,308.68 : 449,037.76 = 88,946.64 : x
  2. Step 2: Convert to fraction form
    299,308.68/449,037.76 = 88,946.64/x
  3. Step 3: Cross multiply
    299,308.68x = 449,037.76 × 88,946.64
  4. Step 4: Simplify right side
    299,308.68x = 39,940,399,985.13
  5. Step 5: Solve for x
    x = 39,940,399,985.13/299,308.68
  6. Step 6: Final answer
    x = 133,442.17

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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.