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Finding the Fourth Proportional to 69,073.74, 103,499.87 and 62,430.75

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Solution

The fourth proportional to 69,073.74, 103,499.87 and 62,430.75 is: 93,546.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,073.74 : 103,499.87 = 62,430.75 : x
  2. Step 2: Convert to fraction form
    69,073.74/103,499.87 = 62,430.75/x
  3. Step 3: Cross multiply
    69,073.74x = 103,499.87 × 62,430.75
  4. Step 4: Simplify right side
    69,073.74x = 6,461,574,196.85
  5. Step 5: Solve for x
    x = 6,461,574,196.85/69,073.74
  6. Step 6: Final answer
    x = 93,546.03

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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.