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Finding the Fourth Proportional to 229,893.40, 317,190.90 and 134,423.56

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Solution

The fourth proportional to 229,893.40, 317,190.90 and 134,423.56 is: 185,468.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,893.40 : 317,190.90 = 134,423.56 : x
  2. Step 2: Convert to fraction form
    229,893.40/317,190.90 = 134,423.56/x
  3. Step 3: Cross multiply
    229,893.40x = 317,190.90 × 134,423.56
  4. Step 4: Simplify right side
    229,893.40x = 42,637,929,977.60
  5. Step 5: Solve for x
    x = 42,637,929,977.60/229,893.40
  6. Step 6: Final answer
    x = 185,468.26

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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.