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Finding the Fourth Proportional to 169,631.60, 254,447.40 and 154,079.60

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Solution

The fourth proportional to 169,631.60, 254,447.40 and 154,079.60 is: 231,119.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,631.60 : 254,447.40 = 154,079.60 : x
  2. Step 2: Convert to fraction form
    169,631.60/254,447.40 = 154,079.60/x
  3. Step 3: Cross multiply
    169,631.60x = 254,447.40 × 154,079.60
  4. Step 4: Simplify right side
    169,631.60x = 39,205,153,613.04
  5. Step 5: Solve for x
    x = 39,205,153,613.04/169,631.60
  6. Step 6: Final answer
    x = 231,119.40

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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.