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Finding the Fourth Proportional to 448,726.40, 672,973.44 and 133,109.12

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Solution

The fourth proportional to 448,726.40, 672,973.44 and 133,109.12 is: 199,629.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,726.40 : 672,973.44 = 133,109.12 : x
  2. Step 2: Convert to fraction form
    448,726.40/672,973.44 = 133,109.12/x
  3. Step 3: Cross multiply
    448,726.40x = 672,973.44 × 133,109.12
  4. Step 4: Simplify right side
    448,726.40x = 89,578,902,381.77
  5. Step 5: Solve for x
    x = 89,578,902,381.77/448,726.40
  6. Step 6: Final answer
    x = 199,629.22

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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.