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Finding the Fourth Proportional to 62,266.80, 93,400.20 and 57,455.40

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Solution

The fourth proportional to 62,266.80, 93,400.20 and 57,455.40 is: 86,183.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,266.80 : 93,400.20 = 57,455.40 : x
  2. Step 2: Convert to fraction form
    62,266.80/93,400.20 = 57,455.40/x
  3. Step 3: Cross multiply
    62,266.80x = 93,400.20 × 57,455.40
  4. Step 4: Simplify right side
    62,266.80x = 5,366,345,851.08
  5. Step 5: Solve for x
    x = 5,366,345,851.08/62,266.80
  6. Step 6: Final answer
    x = 86,183.10

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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.