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Finding the Fourth Proportional to 93,886.70, 140,852.20 and 30,706.58

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Solution

The fourth proportional to 93,886.70, 140,852.20 and 30,706.58 is: 46,067.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,886.70 : 140,852.20 = 30,706.58 : x
  2. Step 2: Convert to fraction form
    93,886.70/140,852.20 = 30,706.58/x
  3. Step 3: Cross multiply
    93,886.70x = 140,852.20 × 30,706.58
  4. Step 4: Simplify right side
    93,886.70x = 4,325,088,888.12
  5. Step 5: Solve for x
    x = 4,325,088,888.12/93,886.70
  6. Step 6: Final answer
    x = 46,067.11

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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.