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Finding the Fourth Proportional to 448,617.71, 672,926.49 and 133,071.88

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Solution

The fourth proportional to 448,617.71, 672,926.49 and 133,071.88 is: 199,607.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,617.71 : 672,926.49 = 133,071.88 : x
  2. Step 2: Convert to fraction form
    448,617.71/672,926.49 = 133,071.88/x
  3. Step 3: Cross multiply
    448,617.71x = 672,926.49 × 133,071.88
  4. Step 4: Simplify right side
    448,617.71x = 89,547,591,443.79
  5. Step 5: Solve for x
    x = 89,547,591,443.79/448,617.71
  6. Step 6: Final answer
    x = 199,607.80

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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.