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Finding the Fourth Proportional to 448,673.85, 673,141.08 and 145,061.53

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Solution

The fourth proportional to 448,673.85, 673,141.08 and 145,061.53 is: 217,634.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,673.85 : 673,141.08 = 145,061.53 : x
  2. Step 2: Convert to fraction form
    448,673.85/673,141.08 = 145,061.53/x
  3. Step 3: Cross multiply
    448,673.85x = 673,141.08 × 145,061.53
  4. Step 4: Simplify right side
    448,673.85x = 97,646,874,970.65
  5. Step 5: Solve for x
    x = 97,646,874,970.65/448,673.85
  6. Step 6: Final answer
    x = 217,634.42

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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.