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Finding the Fourth Proportional to 254,172.60, 351,123.30 and 203,118.48

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Solution

The fourth proportional to 254,172.60, 351,123.30 and 203,118.48 is: 280,595.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,172.60 : 351,123.30 = 203,118.48 : x
  2. Step 2: Convert to fraction form
    254,172.60/351,123.30 = 203,118.48/x
  3. Step 3: Cross multiply
    254,172.60x = 351,123.30 × 203,118.48
  4. Step 4: Simplify right side
    254,172.60x = 71,319,630,988.58
  5. Step 5: Solve for x
    x = 71,319,630,988.58/254,172.60
  6. Step 6: Final answer
    x = 280,595.28

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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.