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Finding the Fourth Proportional to 257,725.68, 386,495.82 and 89,200.26

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Solution

The fourth proportional to 257,725.68, 386,495.82 and 89,200.26 is: 133,768.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,725.68 : 386,495.82 = 89,200.26 : x
  2. Step 2: Convert to fraction form
    257,725.68/386,495.82 = 89,200.26/x
  3. Step 3: Cross multiply
    257,725.68x = 386,495.82 × 89,200.26
  4. Step 4: Simplify right side
    257,725.68x = 34,475,527,632.91
  5. Step 5: Solve for x
    x = 34,475,527,632.91/257,725.68
  6. Step 6: Final answer
    x = 133,768.31

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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.