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Finding the Fourth Proportional to 93,766.32, 129,396.21 and 53,480.77

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Solution

The fourth proportional to 93,766.32, 129,396.21 and 53,480.77 is: 73,802.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,766.32 : 129,396.21 = 53,480.77 : x
  2. Step 2: Convert to fraction form
    93,766.32/129,396.21 = 53,480.77/x
  3. Step 3: Cross multiply
    93,766.32x = 129,396.21 × 53,480.77
  4. Step 4: Simplify right side
    93,766.32x = 6,920,208,945.88
  5. Step 5: Solve for x
    x = 6,920,208,945.88/93,766.32
  6. Step 6: Final answer
    x = 73,802.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.