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Finding the Fourth Proportional to 169,447.80, 233,646.21 and 108,111.90

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Solution

The fourth proportional to 169,447.80, 233,646.21 and 108,111.90 is: 149,072.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,447.80 : 233,646.21 = 108,111.90 : x
  2. Step 2: Convert to fraction form
    169,447.80/233,646.21 = 108,111.90/x
  3. Step 3: Cross multiply
    169,447.80x = 233,646.21 × 108,111.90
  4. Step 4: Simplify right side
    169,447.80x = 25,259,934,522.67
  5. Step 5: Solve for x
    x = 25,259,934,522.67/169,447.80
  6. Step 6: Final answer
    x = 149,072.08

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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.