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Finding the Fourth Proportional to 121,643.76, 182,483.04 and 37,410.96

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Solution

The fourth proportional to 121,643.76, 182,483.04 and 37,410.96 is: 56,121.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,643.76 : 182,483.04 = 37,410.96 : x
  2. Step 2: Convert to fraction form
    121,643.76/182,483.04 = 37,410.96/x
  3. Step 3: Cross multiply
    121,643.76x = 182,483.04 × 37,410.96
  4. Step 4: Simplify right side
    121,643.76x = 6,826,865,710.12
  5. Step 5: Solve for x
    x = 6,826,865,710.12/121,643.76
  6. Step 6: Final answer
    x = 56,121.79

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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.