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Finding the Fourth Proportional to 121,656.33, 182,484.50 and 46,811.72

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Solution

The fourth proportional to 121,656.33, 182,484.50 and 46,811.72 is: 70,217.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,656.33 : 182,484.50 = 46,811.72 : x
  2. Step 2: Convert to fraction form
    121,656.33/182,484.50 = 46,811.72/x
  3. Step 3: Cross multiply
    121,656.33x = 182,484.50 × 46,811.72
  4. Step 4: Simplify right side
    121,656.33x = 8,542,413,318.34
  5. Step 5: Solve for x
    x = 8,542,413,318.34/121,656.33
  6. Step 6: Final answer
    x = 70,217.58

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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.