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Finding the Fourth Proportional to 75,064.98, 103,544.55 and 49,571.58

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Solution

The fourth proportional to 75,064.98, 103,544.55 and 49,571.58 is: 68,378.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,064.98 : 103,544.55 = 49,571.58 : x
  2. Step 2: Convert to fraction form
    75,064.98/103,544.55 = 49,571.58/x
  3. Step 3: Cross multiply
    75,064.98x = 103,544.55 × 49,571.58
  4. Step 4: Simplify right side
    75,064.98x = 5,132,866,943.89
  5. Step 5: Solve for x
    x = 5,132,866,943.89/75,064.98
  6. Step 6: Final answer
    x = 68,378.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.