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Finding the Fourth Proportional to 168,124.60, 232,008.78 and 91,644.40

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Solution

The fourth proportional to 168,124.60, 232,008.78 and 91,644.40 is: 126,467.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,124.60 : 232,008.78 = 91,644.40 : x
  2. Step 2: Convert to fraction form
    168,124.60/232,008.78 = 91,644.40/x
  3. Step 3: Cross multiply
    168,124.60x = 232,008.78 × 91,644.40
  4. Step 4: Simplify right side
    168,124.60x = 21,262,305,437.83
  5. Step 5: Solve for x
    x = 21,262,305,437.83/168,124.60
  6. Step 6: Final answer
    x = 126,467.55

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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.