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Finding the Fourth Proportional to 189,015.60, 283,523.40 and 136,916.40

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Solution

The fourth proportional to 189,015.60, 283,523.40 and 136,916.40 is: 205,374.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,015.60 : 283,523.40 = 136,916.40 : x
  2. Step 2: Convert to fraction form
    189,015.60/283,523.40 = 136,916.40/x
  3. Step 3: Cross multiply
    189,015.60x = 283,523.40 × 136,916.40
  4. Step 4: Simplify right side
    189,015.60x = 38,819,003,243.76
  5. Step 5: Solve for x
    x = 38,819,003,243.76/189,015.60
  6. Step 6: Final answer
    x = 205,374.60

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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.