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Finding the Fourth Proportional to 121,792.44, 182,684.52 and 42,904.59

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Solution

The fourth proportional to 121,792.44, 182,684.52 and 42,904.59 is: 64,355.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,792.44 : 182,684.52 = 42,904.59 : x
  2. Step 2: Convert to fraction form
    121,792.44/182,684.52 = 42,904.59/x
  3. Step 3: Cross multiply
    121,792.44x = 182,684.52 × 42,904.59
  4. Step 4: Simplify right side
    121,792.44x = 7,838,004,429.95
  5. Step 5: Solve for x
    x = 7,838,004,429.95/121,792.44
  6. Step 6: Final answer
    x = 64,355.43

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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.