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Finding the Fourth Proportional to 448,510.80, 672,895.80 and 132,975.30

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Solution

The fourth proportional to 448,510.80, 672,895.80 and 132,975.30 is: 199,501.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,510.80 : 672,895.80 = 132,975.30 : x
  2. Step 2: Convert to fraction form
    448,510.80/672,895.80 = 132,975.30/x
  3. Step 3: Cross multiply
    448,510.80x = 672,895.80 × 132,975.30
  4. Step 4: Simplify right side
    448,510.80x = 89,478,520,873.74
  5. Step 5: Solve for x
    x = 89,478,520,873.74/448,510.80
  6. Step 6: Final answer
    x = 199,501.37

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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.