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Finding the Fourth Proportional to 168,412.50, 232,185.78 and 139,623.48

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Solution

The fourth proportional to 168,412.50, 232,185.78 and 139,623.48 is: 192,495.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,412.50 : 232,185.78 = 139,623.48 : x
  2. Step 2: Convert to fraction form
    168,412.50/232,185.78 = 139,623.48/x
  3. Step 3: Cross multiply
    168,412.50x = 232,185.78 × 139,623.48
  4. Step 4: Simplify right side
    168,412.50x = 32,418,586,610.11
  5. Step 5: Solve for x
    x = 32,418,586,610.11/168,412.50
  6. Step 6: Final answer
    x = 192,495.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.