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Finding the Fourth Proportional to 121,590.64, 182,380.56 and 37,347.40

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Solution

The fourth proportional to 121,590.64, 182,380.56 and 37,347.40 is: 56,019.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,590.64 : 182,380.56 = 37,347.40 : x
  2. Step 2: Convert to fraction form
    121,590.64/182,380.56 = 37,347.40/x
  3. Step 3: Cross multiply
    121,590.64x = 182,380.56 × 37,347.40
  4. Step 4: Simplify right side
    121,590.64x = 6,811,439,726.54
  5. Step 5: Solve for x
    x = 6,811,439,726.54/121,590.64
  6. Step 6: Final answer
    x = 56,019.44

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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.