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Finding the Fourth Proportional to 170,814.30, 256,330.80 and 99,736.80

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Solution

The fourth proportional to 170,814.30, 256,330.80 and 99,736.80 is: 149,669.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,814.30 : 256,330.80 = 99,736.80 : x
  2. Step 2: Convert to fraction form
    170,814.30/256,330.80 = 99,736.80/x
  3. Step 3: Cross multiply
    170,814.30x = 256,330.80 × 99,736.80
  4. Step 4: Simplify right side
    170,814.30x = 25,565,613,733.44
  5. Step 5: Solve for x
    x = 25,565,613,733.44/170,814.30
  6. Step 6: Final answer
    x = 149,669.05

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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.