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Finding the Fourth Proportional to 448,225.88, 672,470.48 and 132,690.98

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Solution

The fourth proportional to 448,225.88, 672,470.48 and 132,690.98 is: 199,075.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,225.88 : 672,470.48 = 132,690.98 : x
  2. Step 2: Convert to fraction form
    448,225.88/672,470.48 = 132,690.98/x
  3. Step 3: Cross multiply
    448,225.88x = 672,470.48 × 132,690.98
  4. Step 4: Simplify right side
    448,225.88x = 89,230,769,025.17
  5. Step 5: Solve for x
    x = 89,230,769,025.17/448,225.88
  6. Step 6: Final answer
    x = 199,075.45

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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.