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Finding the Fourth Proportional to 230,066.56, 317,494.08 and 128,093.44

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Solution

The fourth proportional to 230,066.56, 317,494.08 and 128,093.44 is: 176,770.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,066.56 : 317,494.08 = 128,093.44 : x
  2. Step 2: Convert to fraction form
    230,066.56/317,494.08 = 128,093.44/x
  3. Step 3: Cross multiply
    230,066.56x = 317,494.08 × 128,093.44
  4. Step 4: Simplify right side
    230,066.56x = 40,668,908,886.84
  5. Step 5: Solve for x
    x = 40,668,908,886.84/230,066.56
  6. Step 6: Final answer
    x = 176,770.19

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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.