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Finding the Fourth Proportional to 93,888.28, 140,863.80 and 30,711.28

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Solution

The fourth proportional to 93,888.28, 140,863.80 and 30,711.28 is: 46,077.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,888.28 : 140,863.80 = 30,711.28 : x
  2. Step 2: Convert to fraction form
    93,888.28/140,863.80 = 30,711.28/x
  3. Step 3: Cross multiply
    93,888.28x = 140,863.80 × 30,711.28
  4. Step 4: Simplify right side
    93,888.28x = 4,326,107,603.66
  5. Step 5: Solve for x
    x = 4,326,107,603.66/93,888.28
  6. Step 6: Final answer
    x = 46,077.18

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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.