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Finding the Fourth Proportional to 448,504.59, 672,870.54 and 148,986.74

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Solution

The fourth proportional to 448,504.59, 672,870.54 and 148,986.74 is: 223,517.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,504.59 : 672,870.54 = 148,986.74 : x
  2. Step 2: Convert to fraction form
    448,504.59/672,870.54 = 148,986.74/x
  3. Step 3: Cross multiply
    448,504.59x = 672,870.54 × 148,986.74
  4. Step 4: Simplify right side
    448,504.59x = 100,248,790,437.52
  5. Step 5: Solve for x
    x = 100,248,790,437.52/448,504.59
  6. Step 6: Final answer
    x = 223,517.87

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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.