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Finding the Fourth Proportional to 189,248.17, 260,891.20 and 148,892.05

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Solution

The fourth proportional to 189,248.17, 260,891.20 and 148,892.05 is: 205,257.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,248.17 : 260,891.20 = 148,892.05 : x
  2. Step 2: Convert to fraction form
    189,248.17/260,891.20 = 148,892.05/x
  3. Step 3: Cross multiply
    189,248.17x = 260,891.20 × 148,892.05
  4. Step 4: Simplify right side
    189,248.17x = 38,844,625,594.96
  5. Step 5: Solve for x
    x = 38,844,625,594.96/189,248.17
  6. Step 6: Final answer
    x = 205,257.60

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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.