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Finding the Fourth Proportional to 230,435.68, 318,042.48 and 134,936.80

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Solution

The fourth proportional to 230,435.68, 318,042.48 and 134,936.80 is: 186,236.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,435.68 : 318,042.48 = 134,936.80 : x
  2. Step 2: Convert to fraction form
    230,435.68/318,042.48 = 134,936.80/x
  3. Step 3: Cross multiply
    230,435.68x = 318,042.48 × 134,936.80
  4. Step 4: Simplify right side
    230,435.68x = 42,915,634,515.26
  5. Step 5: Solve for x
    x = 42,915,634,515.26/230,435.68
  6. Step 6: Final answer
    x = 186,236.93

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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.