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Finding the Fourth Proportional to 69,030.74, 103,525.68 and 29,578.70

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Solution

The fourth proportional to 69,030.74, 103,525.68 and 29,578.70 is: 44,359.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,030.74 : 103,525.68 = 29,578.70 : x
  2. Step 2: Convert to fraction form
    69,030.74/103,525.68 = 29,578.70/x
  3. Step 3: Cross multiply
    69,030.74x = 103,525.68 × 29,578.70
  4. Step 4: Simplify right side
    69,030.74x = 3,062,155,031.02
  5. Step 5: Solve for x
    x = 3,062,155,031.02/69,030.74
  6. Step 6: Final answer
    x = 44,359.30

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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.