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Finding the Fourth Proportional to 189,503.60, 283,909.80 and 154,252.40

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Solution

The fourth proportional to 189,503.60, 283,909.80 and 154,252.40 is: 231,097.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,503.60 : 283,909.80 = 154,252.40 : x
  2. Step 2: Convert to fraction form
    189,503.60/283,909.80 = 154,252.40/x
  3. Step 3: Cross multiply
    189,503.60x = 283,909.80 × 154,252.40
  4. Step 4: Simplify right side
    189,503.60x = 43,793,768,033.52
  5. Step 5: Solve for x
    x = 43,793,768,033.52/189,503.60
  6. Step 6: Final answer
    x = 231,097.29

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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.