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Finding the Fourth Proportional to 93,385.32, 140,079.20 and 31,055.82

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Solution

The fourth proportional to 93,385.32, 140,079.20 and 31,055.82 is: 46,584.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,385.32 : 140,079.20 = 31,055.82 : x
  2. Step 2: Convert to fraction form
    93,385.32/140,079.20 = 31,055.82/x
  3. Step 3: Cross multiply
    93,385.32x = 140,079.20 × 31,055.82
  4. Step 4: Simplify right side
    93,385.32x = 4,350,274,265.66
  5. Step 5: Solve for x
    x = 4,350,274,265.66/93,385.32
  6. Step 6: Final answer
    x = 46,584.13

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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.