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Finding the Fourth Proportional to 69,083.70, 103,625.55 and 67,547.70

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Solution

The fourth proportional to 69,083.70, 103,625.55 and 67,547.70 is: 101,321.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,083.70 : 103,625.55 = 67,547.70 : x
  2. Step 2: Convert to fraction form
    69,083.70/103,625.55 = 67,547.70/x
  3. Step 3: Cross multiply
    69,083.70x = 103,625.55 × 67,547.70
  4. Step 4: Simplify right side
    69,083.70x = 6,999,667,563.74
  5. Step 5: Solve for x
    x = 6,999,667,563.74/69,083.70
  6. Step 6: Final answer
    x = 101,321.55

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1.5x scale

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.