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Finding the Fourth Proportional to 69,477.84, 103,967.63 and 60,149.95

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Solution

The fourth proportional to 69,477.84, 103,967.63 and 60,149.95 is: 90,009.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,477.84 : 103,967.63 = 60,149.95 : x
  2. Step 2: Convert to fraction form
    69,477.84/103,967.63 = 60,149.95/x
  3. Step 3: Cross multiply
    69,477.84x = 103,967.63 × 60,149.95
  4. Step 4: Simplify right side
    69,477.84x = 6,253,647,746.12
  5. Step 5: Solve for x
    x = 6,253,647,746.12/69,477.84
  6. Step 6: Final answer
    x = 90,009.24

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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.