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Finding the Fourth Proportional to 448,543.01, 672,944.39 and 133,007.51

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Solution

The fourth proportional to 448,543.01, 672,944.39 and 133,007.51 is: 199,549.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,543.01 : 672,944.39 = 133,007.51 : x
  2. Step 2: Convert to fraction form
    448,543.01/672,944.39 = 133,007.51/x
  3. Step 3: Cross multiply
    448,543.01x = 672,944.39 × 133,007.51
  4. Step 4: Simplify right side
    448,543.01x = 89,506,657,682.37
  5. Step 5: Solve for x
    x = 89,506,657,682.37/448,543.01
  6. Step 6: Final answer
    x = 199,549.78

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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.