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Finding the Fourth Proportional to 121,651.20, 182,444.40 and 37,411.20

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Solution

The fourth proportional to 121,651.20, 182,444.40 and 37,411.20 is: 56,106.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,651.20 : 182,444.40 = 37,411.20 : x
  2. Step 2: Convert to fraction form
    121,651.20/182,444.40 = 37,411.20/x
  3. Step 3: Cross multiply
    121,651.20x = 182,444.40 × 37,411.20
  4. Step 4: Simplify right side
    121,651.20x = 6,825,463,937.28
  5. Step 5: Solve for x
    x = 6,825,463,937.28/121,651.20
  6. Step 6: Final answer
    x = 56,106.84

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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.