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Finding the Fourth Proportional to 169,996.10, 255,032.55 and 99,839.30

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Solution

The fourth proportional to 169,996.10, 255,032.55 and 99,839.30 is: 149,781.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,996.10 : 255,032.55 = 99,839.30 : x
  2. Step 2: Convert to fraction form
    169,996.10/255,032.55 = 99,839.30/x
  3. Step 3: Cross multiply
    169,996.10x = 255,032.55 × 99,839.30
  4. Step 4: Simplify right side
    169,996.10x = 25,462,271,269.22
  5. Step 5: Solve for x
    x = 25,462,271,269.22/169,996.10
  6. Step 6: Final answer
    x = 149,781.50

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1.5x scale

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.