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Finding the Fourth Proportional to 93,710.50, 140,580.36 and 30,515.70

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Solution

The fourth proportional to 93,710.50, 140,580.36 and 30,515.70 is: 45,778.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,710.50 : 140,580.36 = 30,515.70 : x
  2. Step 2: Convert to fraction form
    93,710.50/140,580.36 = 30,515.70/x
  3. Step 3: Cross multiply
    93,710.50x = 140,580.36 × 30,515.70
  4. Step 4: Simplify right side
    93,710.50x = 4,289,908,091.65
  5. Step 5: Solve for x
    x = 4,289,908,091.65/93,710.50
  6. Step 6: Final answer
    x = 45,778.31

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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.