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Finding the Fourth Proportional to 448,987.32, 673,510.08 and 133,417.80

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Solution

The fourth proportional to 448,987.32, 673,510.08 and 133,417.80 is: 200,135.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,987.32 : 673,510.08 = 133,417.80 : x
  2. Step 2: Convert to fraction form
    448,987.32/673,510.08 = 133,417.80/x
  3. Step 3: Cross multiply
    448,987.32x = 673,510.08 × 133,417.80
  4. Step 4: Simplify right side
    448,987.32x = 89,858,233,151.42
  5. Step 5: Solve for x
    x = 89,858,233,151.42/448,987.32
  6. Step 6: Final answer
    x = 200,135.35

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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.