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Finding the Fourth Proportional to 93,365.56, 140,002.86 and 31,015

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Solution

The fourth proportional to 93,365.56, 140,002.86 and 31,015 is: 46,507.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,365.56 : 140,002.86 = 31,015 : x
  2. Step 2: Convert to fraction form
    93,365.56/140,002.86 = 31,015/x
  3. Step 3: Cross multiply
    93,365.56x = 140,002.86 × 31,015
  4. Step 4: Simplify right side
    93,365.56x = 4,342,188,702.90
  5. Step 5: Solve for x
    x = 4,342,188,702.90/93,365.56
  6. Step 6: Final answer
    x = 46,507.39

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1.5x scale

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.