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Finding the Fourth Proportional to 62,515.80, 93,816.90 and 45,000.60

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Solution

The fourth proportional to 62,515.80, 93,816.90 and 45,000.60 is: 67,532.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,515.80 : 93,816.90 = 45,000.60 : x
  2. Step 2: Convert to fraction form
    62,515.80/93,816.90 = 45,000.60/x
  3. Step 3: Cross multiply
    62,515.80x = 93,816.90 × 45,000.60
  4. Step 4: Simplify right side
    62,515.80x = 4,221,816,790.14
  5. Step 5: Solve for x
    x = 4,221,816,790.14/62,515.80
  6. Step 6: Final answer
    x = 67,532.00

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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.