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Finding the Fourth Proportional to 226,316.40, 339,474.60 and 142,335.60

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Solution

The fourth proportional to 226,316.40, 339,474.60 and 142,335.60 is: 213,503.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,316.40 : 339,474.60 = 142,335.60 : x
  2. Step 2: Convert to fraction form
    226,316.40/339,474.60 = 142,335.60/x
  3. Step 3: Cross multiply
    226,316.40x = 339,474.60 × 142,335.60
  4. Step 4: Simplify right side
    226,316.40x = 48,319,320,875.76
  5. Step 5: Solve for x
    x = 48,319,320,875.76/226,316.40
  6. Step 6: Final answer
    x = 213,503.40

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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.