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Finding the Fourth Proportional to 448,547.01, 672,950.39 and 133,011.51

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Solution

The fourth proportional to 448,547.01, 672,950.39 and 133,011.51 is: 199,555.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,547.01 : 672,950.39 = 133,011.51 : x
  2. Step 2: Convert to fraction form
    448,547.01/672,950.39 = 133,011.51/x
  3. Step 3: Cross multiply
    448,547.01x = 672,950.39 × 133,011.51
  4. Step 4: Simplify right side
    448,547.01x = 89,510,147,528.99
  5. Step 5: Solve for x
    x = 89,510,147,528.99/448,547.01
  6. Step 6: Final answer
    x = 199,555.78

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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.